4 August 1995 Operation Storm started at 5 a.m. on 4 August 1995 when coordinated attacks were executed by reconnaissance and sabotage detachments in concert with
Croatian Air Force (CAF) air strikes aimed at disrupting ARSK
command, control, and communications. UN peacekeepers, known as
United Nations Confidence Restoration Operation (UNCRO), were notified three hours in advance of the attack when Tuđman's chief of staff,
Hrvoje Šarinić, telephoned UNCRO commander,
French Army General Bernard Janvier. In addition, each HV corps notified the UNCRO sector in its path of the attack, requesting written confirmations of receipt of the information. The UNCRO relayed the information to the RSK, confirming the warnings RSK received from the Yugoslav Army General Staff the previous day.
Sector South Supreme Defence Council to evacuate civilians from the
Knin area|alt=Typewritten and signed order In the Split Corps AOR, at 5 a.m. the 7th Guards Brigade advanced south from Bosansko Grahovo towards the high ground ahead of Knin after a period of artillery preparation. Moving against the ARSK 3rd
Battlegroup, consisting of elements of the North Dalmatian Corps and RSK police, the 7th Guards achieved its objectives for the day and allowed the 4th Guards Brigade to attack. The HV
Sinj Operational Group (OG), on the left flank of the two brigades, joined the attack and the 126th Home Guard Regiment captured
Uništa, gaining control of the area overlooking the Sinj–Knin road. The 144th Brigade and the 6th Home Guard Regiment also pushed ARSK forces back. The
Šibenik OG units faced the ARSK 75th Motorized Brigade and a part of the 2nd Infantry Brigade of the ARSK North Dalmatian Corps. There, the 142nd and the 15th Home Guard Regiments made minor progress in the area between
Krka and
Drniš, while the 113th Infantry Brigade made a slightly greater advance on their left flank, to
Čista Velika. In the
Zadar OG area, the 134th Home Guard Regiment (without its 2nd Battalion) failed to advance, while the 7th Home Guard Regiment and the 112th HV Brigade gained little ground against the ARSK 92nd Motorized and 3rd Infantry Brigades at
Benkovac. On the Velebit, the 2nd Battalion of the 9th Guards Brigade, reinforced with a company from the 7th Home Guard Regiment, and the 2nd Battalion of the 134th Home Guard Regiment met stiff resistance but advanced sufficiently to secure use of the
Obrovac–
Sveti Rok road. At 4:45 p.m., a decision to evacuate the population in the Northern Dalmatia and Lika areas was made by RSK President
Milan Martić. According to RSK Major General
Milisav Sekulić, Martić ordered the evacuation hoping to coax Milošević and the international community to help the RSK. Nonetheless, the evacuation was extended the whole sectors North and South, except Kordun region. In the evening the
ARSK Main Staff moved from Knin to
Srb, At 5 a.m., Croatian special police advanced to the Mali Alan pass on the Velebit, encountering strong resistance from the ARSK Lika Corps' 4th Light Brigade and elements of the 9th Motorized Brigade. The pass was captured at 1 p.m., and Sveti Rok village was captured at about 5 p.m. The special police advanced further beyond Mali Alan, meeting more resistance at 9 p.m. and then
bivouacking until 5 a.m. The ARSK 9th Motorized Brigade withdrew to
Udbina after being forced out of its positions on the Velebit. In the morning, the special police captured
Lovinac,
Gračac and
Medak. In the Gospić Corps AOR, the 138th Home Guard Regiment and the 1st Battalion of the 1st Guards Brigade began an eastward attack in the
Mala Kapela area in the morning, meeting heavy resistance from the ARSK 70th Infantry Brigade. The rest of the 1st Guards joined in around midnight. The 133rd Home Guard Regiment attacked east of
Otočac, towards
Vrhovine, attempting to encircle the ARSK 50th Infantry Brigade and elements of the ARSK 103rd Infantry Brigade in a
pincer movement. Even though the regiment advanced, it failed to achieve its objective for the day. On the regiment's right flank, the HV 128th Brigade advanced together with the 3rd Battalion of the 8th Home Guard Regiment and cut through the Vrhovine–Korenica road. The rest of the 9th Guards Brigade, the bulk of the HV 118th Home Guard Regiment and the 111th Infantry Brigade advanced east from Gospić and Lički Osik, coming up against very strong resistance from the ARSK 18th Infantry Brigade. As a result of these setbacks, the Gospić Corps ended the day short of the objectives it had been given.
Sector North In the Ogulin area of the HV Karlovac Corps AOR, the 99th Brigade, reinforced by the 143rd Home Guard Regiment's
Saborsko Company, moved towards
Plaški at 5 a.m., but the force was stopped and turned back in disarray by 6 p.m. The 143rd Home Guard Regiment advanced from
Josipdol towards Plaški, encountering minefields and strong ARSK resistance. Its elements connected with the 14th Home Guard Regiment, advancing through
Barilović towards
Slunj. Near the city of Karlovac, the 137th Home Guard Regiment deployed four
reconnaissance groups around midnight of 3–4 August, followed by artillery preparation and crossing of the
Korana River at 5 a.m. The advance was fiercely resisted by the ARSK 13th Infantry Brigade, but the
bridgehead was stable by the end of the day. The 110th Home Guard Regiment, reinforced by a company of the 137th Home Guard Regiment, advanced east to the road leading south from Karlovac to
Vojnić and Slunj, where it met heavy resistance and suffered more casualties to landmines, demoralizing the unit and preventing its further advance. In addition, the attached company of the 137th Home Guard Regiment and the 104th Brigade failed to secure the regiment's flanks. The 104th Brigade tried to cross the
Kupa River at 5 a.m., but failed and fell back to its starting position by 8 a.m., at which time it was shifted to the bridgehead established by the 110th Home Guard Regiment. A company of the 99th Brigade was attached to the 143rd Home Guard Regiment for operations the next day, and a 250-strong battlegroup was removed from the brigade and subordinated to the Karlovac Corps directly. In the Zagreb Corps area, the HV moved across the Kupa River at two points towards Glina—in and near
Pokupsko, using the 20th Home Guard Regiment and the 153rd Brigade. Both crossings established bridgeheads, although the bulk of the units were forced to retreat as the ARSK counter-attacked—only a battalion of the 153rd Brigade and elements of the 20th Home Guard Regiment held their ground. The crossings prompted the ARSK General Staff to order the 2nd Armoured Brigade of the Special Units Corps to move from Slunj to the bridgeheads, as the HV advance threatened a vital road in Glina.
5 August 1995 Sector South and
Šušak visiting
Knin Fortress on 6 August. Officers in the photo include Lieutenant General
Gotovina and
Brigadiers
Ivan Korade and
Damir Krstičević (commanders of the 7th and 4th Guards Brigades) on Tuđman's right, and Brigadiers
Rahim Ademi and
Ante Kotromanović on Šušak's left.|alt=Franjo Tuđman and several Croatian Army officers at a photo op The HV did not advance towards Knin during the night of 4/5 August when the ARSK General Staff ordered a battalion of the 75th Motorized Brigade to stage themselves north of Knin. The ARSK North Dalmatian Corps became increasingly uncoordinated as the HV 4th Guards Brigade advanced south towards Knin, protecting the right flank of the 7th Guards Brigade. The latter met little resistance and entered the town at about 11 a.m. Lieutenant General
Ivan Čermak was appointed commander of the newly established HV Knin Corps. Sinj OG completed its objectives, capturing
Kozjak and
Vrlika, and meeting little resistance as the ARSK 1st Light Brigade disintegrated, retreating to Knin and later to Lika. By 8 p.m., Šibenik OG units advanced to
Poličnik (113th Brigade),
Đevrske (15th Home Guard Regiment), and captured Drniš (142nd Home Guard Regiment), while the ARSK 75th Motorized Brigade retreated towards Srb and
Bosanski Petrovac together with the 3rd Infantry and the 92nd Motorized Brigades, leaving the Zadar OG units with little opposition. The 7th Home Guard Regiment captured Benkovac, while the 112th Brigade entered
Smilčić and elements of the 9th Guards Brigade reached Obrovac. The 138th Home Guard Regiment and the 1st Guards Brigade advanced to Lička Jasenica, the latter pressing their attack further towards Saborsko, with the 2nd Battalion of the
HV 119th Brigade reaching the area in the evening. The HV reinforced the 133rd Home Guard Regiment with a battalion of the 150th Brigade enabling the regiment to achieve its objectives of the previous day, partially encircling the ARSK force in Vrhovine. The 154th Home Guard Regiment was mobilized and deployed to the
Ličko Lešće area. The 9th Guards Brigade (without its 2nd Battalion) advanced towards Udbina Air Base, where ARSK forces started to evacuate. The 111th Brigade and the 118th Home Guard Regiment also made small advances, linking up behind ARSK lines.
Sector North The 143rd Home Guard Regiment advanced towards Plaški, capturing it that evening, while the 14th Home Guard Regiment captured Primišlje, northwest of Slunj. At 0:30 a.m., the ARSK 13th Infantry Brigade and a company of the 19th Infantry Brigade counter-attacked at the Korana bridgehead, causing the bulk of the 137th Home Guard Regiment to panic and flee across the river. A single platoon of the regiment remained but the ARSK troops did not exploit the opportunity to destroy the bridgehead. In the morning, the regiment reoccupied the bridgehead, reinforced by a 350-strong battlegroup drawn from the 104th Brigade (including a tank platoon and
multiple rocket launchers), and a company of the 148th Brigade from the Karlovac Corps operational reserve. The regiment and the battlegroup managed to extend the bridgehead towards the Karlovac–Slunj road. The 110th Home Guard Regiment attacked again south of Karlovac, but was repelled by prepared ARSK defences. That night, the Karlovac Corps decided to move elements of the 110th Home Guard Regiment and the 104th Brigade to the Korana bridgehead, while the ARSK 13th Infantry Brigade retreated to the right bank of Korana in an area extending about north from Slunj. The Zagreb Corps made little or no progress on day two of the battle. Part of the 2nd Guards Brigade was ordered to drive towards Glina with the 20th Home Guards Regiment making a modest advance, while the 153rd Brigade abandoned its bridgehead. In the area of Petrinja, the HV advanced gradually only to be pushed back in some areas by an ARSK counter-attack. The results were reversed at significant cost by a renewed push by the 2nd Guards Brigade. The Zagreb Corps commander was replaced by Lieutenant General
Petar Stipetić on orders from President Tuđman. The HV reassigned the 102nd Brigade to drive to Glina, and the 57th Brigade was reinforced with the 2nd Battalion of the 149th Brigade. The 145th Brigade was moved from
Popovača to the Sunja area, where the 17th Home Guard Regiment and the 151st Brigade made minor advances into the ARSK-held area. In the Bjelovar Corps AOR, Hrvatska Dubica was captured by the 52nd and the 24th Home Guard Regiments advancing from the east and the 125th Home Guard Regiment approaching from the north. The 125th Home Guard Regiment garrisoned the town, while the 52nd Home Guard Regiment moved northwest towards expected Zagreb Corps positions, but the Zagreb Corps' delays prevented any link-up. The 24th Home Guard Regiment advanced about towards Hrvatska Kostajnica when it was stopped by ARSK troops. In response, the Corps called in a battalion and a reconnaissance platoon of the 121st Home Guard Regiment from
Nova Gradiška to aid the push to the town. The ARBiH
505th and 511th Mountain Brigades advanced north to Dvor and engaged the ARSK 33rd Infantry Brigade—the only reserve unit of the Banija Corps.
6 August 1995 (left) greeting ARBiH Lieutenant General
Atif Dudaković (right) in Tržačka Raštela, on 6 August, after the
siege of Bihać was lifted|alt=Generals Mareković and Dudaković shaking hands On 6 August, the HV conducted mopping-up operations in the areas around Obrovac, Benkovac, Drniš and Vrlika, as President Tuđman visited Knin. After securing their objectives on or near Velebit, the special police was deployed on foot behind ARSK lines to hinder movement of ARSK troops there, capturing strategic intersections in the villages of Bruvno at 7 a.m. and
Otrić at 11 a.m. At midnight, elements of the ARBiH 501st and 502nd Mountain Brigades advanced west from Bihać against a skeleton force of the ARSK Lika Corps that had been left behind since the beginning of the battle. The 501st moved about into Croatian territory, to
Ličko Petrovo Selo and
Plitvice Lakes by 8 a.m. The 502nd captured an ARSK radar and communications facility on
Plješivica Mountain, and proceeded towards Korenica where it was stopped by the ARSK units. The HV 1st Guards Brigade reached
Rakovica and linked up with the Bosnia-Herzegovina 5th Corps in the area of
Drežnik Grad by 11 a.m. It was supported by the 119th Brigade and a battalion of the 154th Home Guard Regiment deployed in the
Tržačka Raštela and Ličko Petrovo Selo areas. In the afternoon, a link-up ceremony was held for the media in Tržačka Raštela. The 138th Home Guard Regiment completely encircled Vrhovine, which was captured by the end of the day by the 8th and the 133rd Home Guard Regiments, reinforced with a battalion of the 150th Brigade. The HV 128th Brigade entered Korenica while the 9th Guards Brigade continued towards Udbina. At 11 a.m., an agreement was reached between the ARSK and civilian authorities in Glina and
Vrginmost, securing the evacuation of civilians from the area. The ARBiH 502nd Mountain Brigade also moved north, flanking the APWB capital of Velika Kladuša from the west, and capturing the town by the end of the day. The TG2 advanced to Petrinja at about 7 a.m. after a heavy artillery preparation. The 12th Home Guard Regiment entered the city from the west and was subsequently assigned to garrison Petrinja and its surrounding area. After the loss of Petrinja to the HV, the bulk of the ARSK Banija Corps started to retreat towards
Dvor. The HV 57th Brigade advanced against light resistance and took control of the Petrinja–Hrvatska Kostajnica road. During the night of 6/7 August, the 20th Home Guard Regiment, supported by Croatian police and elements of the 153rd Brigade, captured Glina despite strong resistance. The 153rd Brigade then took positions that allowed the advance to continue towards the village of
Maja in coordination with the 2nd Guards Brigade, which drove south from Petrinja towards
Zrinska gora conducting mop-up operations. The 140th Home Guard Regiment flanked the 2nd Guards Brigade on the northern slope of Zrinska Gora, while the 57th Brigade captured
Umetić. The 103rd and the 151st Brigades, and the 17th Home Guard Regiment, advanced towards Hrvatska Kostajnica, with the addition of a battalion of the HV 145th Brigade which would arrive that afternoon. Around noon, the 151st Brigade connected with the Bjelovar Corps units on the Sunja–Hrvatska Dubica road. They were assigned to secure roads in the area afterwards. By capturing Glina, the HV trapped the bulk of the ARSK Kordun Corps and about 35,000 evacuating civilians in the area of Topusko, prompting its commander to request UNCRO protection. The 1st Guards Brigade, approaching Topusko from Vojnić, received orders to engage the ARSK Kordun Corps, but the orders were cancelled at midnight by the chief of the HV General Staff. Instead, the Zagreb Corps was instructed to prepare a brigade-strength unit to escort unarmed persons and ARSK officers and
non-commissioned officers with
side arms to Dvor and allow them to cross into Bosnia and Herzegovina. Based on information obtained from UN troops, it was believed that the ARSK forces in Banovina were about to surrender. A battalion of the 121st Home Guard Regiment entered Hrvatska Kostajnica, while the 24th Home Guard Regiment battlegroup secured the national border behind them. The 52nd Home Guard Regiment connected with the Zagreb Corps and then turned south to the town, reaching it that evening. The capture of Hrvatska Kostajnica marked the fulfilment of all of the Bjelovar Corps' objectives.
7 August 1995 The
1st Croatian Guards Brigade (
1. hrvatski gardijski zdrug - HGZ) arrived in the Knin area to connect with elements of the 4th, 7th and 9th Guards Brigades, tasked with a northward advance the next day. The Split Corps command moved to Knin as well. The Croatian special police proceeded to Gornji Lapac and
Donji Lapac arriving by 2 p.m. and completing the boundary between the Gospić and Split Corps AORs. The Croatian special police also made contact with the 4th Guards Brigade in Otrić and the Gospić Corps units in Udbina by 3 p.m. By 7 p.m., a battalion of the special police reached the border near
Kulen Vakuf, securing the area. In the morning, the 9th Guards Brigade (without its 2nd Battalion) captured Udbina, where it connected with the 154th Home Guard Regiment, approaching from the opposite side of the
Krbava Polje ( or
karst field). By the end of the day, Operation Storm objectives assigned to the Gospić Corps were completed. A forward command post of the HV General Staff was moved from Ogulin to Slunj, and it assumed direct command of the 1st Guards Brigade, the 14th Home Guard Regiment and the 99th Brigade. The 14th Home Guard Regiment secured the Slunj area and deployed to the left bank of Korana to connect with the advancing Karlovac special police. Elements of the regiment and the 99th Brigade secured the national border in the area. The 1st Guards Brigade advanced towards Kordun, as the Karlovac Corps reoriented its main axis of attack. The 110th Home Guard Regiment and elements of the 104th Brigade reached a largely deserted Vojnić in early afternoon, followed by the 1st Guards Brigade, the 143rd Home Guard Brigade and the 137th Home Guard Regiment. Other HV units joined them by evening. The 2nd Guards Brigade advanced from Maja towards Dvor, but was stopped approximately short by ARSK units protecting the withdrawal of the ARSK and civilians towards the town. Elements of the brigade performed mopping-up operations in the area. The ARSK 33rd Infantry Brigade held the road bridge in Dvor that connected the ARSK and the Republika Srpska across the Una River. The brigade was overwhelmed by the ARBiH 5th Corps, and it retreated south of Una, as the ARSK 13th Infantry Brigade and the civilians from Kordun were reaching Dvor. Elements of the 17th Home Guard Regiment and the HV 145th and 151st Brigades reached Dvor via Hrvatska Kostajnica and came into contact with the ARSK 13th Infantry Brigade and elements of the ARSK 24th Infantry and 2nd Armoured Brigades, who had retreated from Glina. As the expected surrender of the ARSK Kordun Corps did not materialize, the HV was ordered to reengage.
8–14 August 1995 On 8 August, the 4th and the 7th Guards Brigades, the 2nd Battalion of the 9th Guards Brigade and the 1st HGZ advanced north to Lička Kaldrma and the border of Bosnia and Herzegovina, eliminating the last major pocket of ARSK resistance in Donji Lapac and the Srb area by 8 p.m. and achieving all of Split Corps' objectives for Operation Storm. Elements of the 2nd Guards Brigade reached the Croatian border southwest of Dvor, where fighting for full control of the town was in progress, and connected with the ARBiH 5th Corps. As Tuđman ordered the cessation of military operations that afternoon, the ARSK Kordun Corps accepted surrender. Negotiations of the terms of surrender were held the same day at 1:20 p.m. at the
Ukrainian UNCRO troops command post in Glina, and the surrender document was signed at 2 p.m. in Topusko. Croatia was represented by Lieutenant General Stipetić, while the RSK was represented by Bulat, commander of the ARSK Kordun Corps, and Interior Minister Tošo Pajić. The terms of surrender specified the handover of weapons, except officers' side arms, on the following day, and the evacuation of persons from Topusko via Glina, Sisak, and the Zagreb–Belgrade motorway to Serbia, protected by the Croatian military and civilian police. On 9 August, the special police surrendered their positions to the HV, after covering more than on foot in four days. The HV secured Dvor late in the evening, shortly after the civilians finished evacuating. Numerous HV Home Guard units were later tasked with further mopping up operations. ==Air force operations==