The Front's main effort was made between
Yelnya and
Spas-Demensk by 10th Guards and
33rd Armies. The 10th Guards'
15th and 19th Guards Corps were deployed on a 10 km-wide sector between Mazovo and Sluzna; the 56th and 65th Guards Divisions were in the first echelon with the 22nd Guards in the second. Each division had about 8,000 personnel on strength. The
5th Mechanized Corps was assembled behind the Army, ready to exploit the expected breakthrough. The operational objective for the first day of the offensive was the town of Pavlinovo situated on the Smolensk - Spas-Demensk railway, 10 km to the south. The German defense in this sector was based on the
Büffel-Stellung position, held by
XII Army Corps. That Corps'
260th and
268th Infantry Divisions had both been reduced to just two infantry regiments and held very wide sectors, but the terrain was heavily wooded and dotted with numerous fortified villages. Furthermore, two key German positions at Gnezdilovo and nearby Hill 233.3 had not been identified by Soviet intelligence and so escaped the preparatory bombardment. That bombardment began at 0440 hours and continued until 0630, consuming more than 50 percent of Western Front's available ammunition. Shortly after crossing the start line the 56th and 65th Guards ran into heavy resistance from the 499th Regiment of the 268th Infantry. That Division's artillery broke up the assault groups before they could make any progress while a pair of German assault guns picked off advancing
T-34s of the supporting 119th Tank Regiment. However, here and there some small detachments found a way through. The 56th managed to carve out a 1 km-deep penetration near Kamenka but it was soon evident that 19th Guards Corps had been stopped cold. The 15th Guards Corps made somewhat greater progress against the portion of the 499th Regiment that it faced. By the early afternoon the commander of Western Front, Col. Gen.
V. D. Sokolovsky, was already making command changes and committing additional forces. During the rest of the afternoon the 10th Guards Army's infantry gradually outflanked the remaining strongpoints of the 499th Regiment and once night fell the 268th Infantry was authorized to pull back 2–3 km to form a new line. Meanwhile, a battlegroup of the
2nd Panzer Division, de-training near Yelnya, was ordered to march to support that Division. The offensive resumed at 0730 hours on August 8 after a 30-minute artillery preparation. The 65th Guards, now reinforced by the 22nd Guards and the 1st Assault Engineer-Sapper Brigade, remained stymied in front of Hill 233.3, held by a single German battalion. However the two German divisions were being drained by steady losses. A further effort by the two Guards divisions on August 9 was thrown back by a furious counterattack. The Hill was not finally taken until the evening of August 10 after a massive assault led by the reinforcing
29th Guards Rifle Division supported by the 23rd Tank Brigade. A few hours earlier the 56th Guards had captured the village of Delyagino, causing the German forces to retreat 2 km to the south. These gains unhinged the
Büffel-Stellung and allowed 10th Guards Army to finally reach the Smolensk - Spas-Demensk railway; the XII Corps was now forced to trade space for time until Sokolovsky's offensive outran its logistical support. Western Front's artillery had already shot off almost all of its available ammunition. On August 12 the 10th Guards Army made another major push and liberated Gnezdilovo. Despite German reinforcements by late afternoon XII Corps' front was crumbling and Soviet infantry and tanks were approaching Pavlinovo. Under the circumstances the Corps was ordered to evacuate Spas-Demensk overnight. By August 14 Sokolovsky brought the
21st Army into the 10th Guards Army's sector, allowing the latter to pull back for rest and rebuilding. While out of the line on August 17 Colonel Ruz was replaced in command by Col. Grigorii Ivanovich Panishev. On August 21 the
STAVKA authorized a suspension of the offensive. German losses had been heavy, but the 10th Guards Army had also lost 30 percent casualties, although the 65th Guards had suffered the most.
The Liberation of Yelnya The offensive was renewed on August 28, with the 10th Guards, 21st, 33rd and
68th Armies in the center of the Front making the main attack. The objective was to finally shatter the XII Army Corps and then push mobile groups through the gaps to seize Yelnya. At 0800 hours the Front began a 90-minute artillery preparation across a 25-km wide front southeast of that city. 10th Guards and 21st Armies attacked a German battlegroup around Terenino station, held by one infantry battalion and an engineer unit. German reserves were brought in and the battle see-sawed for about eight hours until the German battlegroup fell apart and began retreating to the
Ugra River. In total the two Soviet armies advanced from 6 to 8 km. The next day the 10th Guards mopped up the German elements that had failed to make it over the Ugra and began pushing up the rail line toward Yelnaya. Despite intervention by the battlegroup of 2nd Panzer the 10th Guards pushed back the right flank of the
342nd Infantry Division with the 29th Guards Division and the 119th Tank Regiment in the lead. Yelnya was evacuated during the afternoon and was liberated on August 30. From here it was only 75 km to Smolensk, but by September 3 the German
4th Army had patched up a tenuous new front west of Yelnya. General Sokolovsky continued local attacks through the first week of the month but his Western Front was again forced to a halt due to logistical shortages. He was authorized to pause the offensive for another week. During the night of September 14/15 Sokolovsky's center group of armies conducted aggressive probing all along the front of the German
IX Army Corps which was holding a 40 km-wide line with five decimated divisions; known German positions were also pounded with artillery. At 0545 hours a 90-minute artillery preparation began, followed by an intense air bombardment. The ground attack began at 0715, south of the Smolensk - Yelnya railroad. At 1030 hours the 10th Guards Army struck the left flank of the
330th Infantry Division with a mass of infantry and tanks, pushing back two battalions. The Army, in cooperation with 21st Army, continued attacking into the afternoon, creating several small penetrations and advancing up to 3 km.
The Liberation of Smolensk Overnight the 330th Infantry made minor withdrawals to straighten its front. On September 16 the 10th Guards Army, now led by 15th Guards Corps, failed to make any substantive gains. However it was clear by the end of the day that IX Corps was close to breaking and during the night it fell back to the next defensive line, which was mostly incomplete. Sokolovsky ordered a pursuit to approach Smolensk from the south with the 10th Guards and 68th Armies and most of his armor. The retreat of the 330th Infantry was covered by the
Tiger tanks of heavy
Panzer-Abteilung 505. Supply problems forced the Soviet armies to pause for a few days outside Smolensk before making the final push. On the morning of September 22 that push began and 68th Army made a clear breakthrough southeast of the city. Late on the 23rd German 4th Army signalled the evacuation of Smolensk. During the next day the Soviet forces probed the German defenses but did not begin their attacks until nightfall. By 0600 hours on September 25 most of Smolensk was liberated, although much of it was destroyed or damaged. ==Battles for Orsha==