During the January advance, 39th Army bypassed north of Rzhev itself in an effort to get behind the city and encircle the forces of German
9th Army holding there. It advanced into a gap between
Bely and
Olenino and by the third week of the month was fighting for Sychevka from the west, even taking the town's railway station.
29th Army and the
11th Cavalry Corps also entered the gap, but despite bitter fighting and reinforcements from 39th Army, the 29th was unable to liberate Rzhev. On January 23, a German counterattack from Olenino and Rzhev constricted the gap, worsening an already critical supply situation for the two Armies. A further attack on February 5 cut the 29th off from the 39th. Despite urgent efforts, including paratroop operations, the German cordon could not be pierced, and the survivors of 29th Army trickled through to the lines of the 39th and
30th Armies during the rest of the month. As of February 28 the 373rd was recorded as having a total of 2,274 personnel, 21 percent of its authorized strength. During the following months 39th Army held its positions, always under severe supply constraints, especially during the spring
rasputitsa. In May and June, Army Group Center began planning a limited offensive to eliminate the smaller Soviet salients to its rear.
Operation Seydlitz began on July 2, and faced heavy resistance, but by July 5 the Army's commander, Lt. Gen.
I. I. Maslennikov, had decided to withdraw from the salient. On July 9, the escape corridor was more-or-less sealed, and the remaining troops of 39th Army began emerging much as had the men of the 29th Army months earlier. During July, 39th Army recorded 23,647 total personnel losses, including 22,749 missing-in-action. The remnants of the 373rd were withdrawn for reforming. As of August 1, 39th Army consisted of only "Cavalry Detachment Stepanov" and the cadre of the 373rd, and by September 1 the division was in the reserves of Kalinin Front. Due to this rebuilding, the 373rd was unavailable for the
First Rzhev–Sychyovka Offensive Operation. On August 12, Lt. Colonel Khmylyov was replaced in command by Lt. Col. Matveii Sergeevich Yeroshkin, but on September 11 he was in turn replaced by Col. Kuzma Ivanovich Sazonov, who would be promoted to the rank of major general on September 13, 1944, and would remain in command for the duration of the war. The division returned to active operations, back in 39th Army, in time for the Second Rzhev–Sychyovka Offensive Operation, also known as
Operation Mars.
Operation Mars By late November, 39th Army held positions at the northern apex of the salient, and the 373rd had the 1235th and 1237th Rifle Regiments north of the village of Kazakovo, while the 1239th faced the east side of the German bridgehead at the town of
Molodoi Tud. The Army, now under command of Maj. Gen. A. I. Zygin, was on a secondary sector, with the mission to "attack and seize the high road running from Molodoi Tud to Rzhev... and then, in cooperation with 22nd Army... seize the key city of Olenino." The terrain in the sector was difficult, and the German forces had heavily fortified the south bank of the Molodoi Tud River, but in mitigation they had only one division, the
206th, in the line, although
14th Motorized Division was known to be in reserve. Zygin saw his immediate objective as the town of Urdom, which would encircle the 206th. He planned to attack across the river with the
158th,
135th, and 373rd Rifle Divisions after a one-hour artillery preparation, supported by the 81st and 28th Tank Brigades. The
348th Rifle Division was in reserve. The attack began at 1000 hours on November 25, but it quickly became apparent that the artillery had failed to destroy or suppress many of the German strongpoints, and the 373rd, along with the 158th and 135th, were forced to retreat to the north bank. Zygin ordered them to regroup to renew the attack the next day. Meanwhile, the forces on 39th Army's flanks gained some successes and seemed to be making the German position untenable until the arrival of elements of the
Panzer-Grenadier-Division Großdeutschland at 1800 hours partly restored the situation. Early on the morning of November 26 Zygin ordered Colonel Sazonov to narrow his attack sector and be prepared to commit his second echelon regiment as soon as the lead regiment was across the Molodoi Tud. A slightly stronger artillery preparation was laid on, with much improved observation as the weather cleared, which also allowed air support. During the day the 1237th Rifle Regiment established itself on the south bank, being joined by the 1235th Regiment on the next day and driving the German forces from the village of Malye Bredniki. On the same day the 1239th Regiment assisted in the liberation of the town of Molodai Tud. On November 28, 39th Army continued to assail the second-line positions of the 206th Infantry. Following yet another artillery preparation the 373rd took Briukhanovo, but this did not breach the German line. By nightfall on the 29th, although small groups of Soviet tanks and infantry had approached the key position at Urdom, they had all been repulsed with heavy losses, in large part due to further intervention by
Großdeutschland. In an overnight conference, Colonel Sazonov, Colonel Malygin of the 81st Tank Brigade, and Colonel Kovalenko of the 135th Rifle Division, planned a concerted attack on Urdom, to begin the next morning. By this time the two divisions had lost about half of their men. Given these losses, General Zygin got approval to release the 348th Rifle Division from reserve into the attack. Under the new plan, while the 135th and 348th struck the German defenses on either side of the town, one regiment of the 373rd, with Malygin's remaining tanks, would attempt to envelop it. The battle on November 30 lasted all day, but was successful. A handful of remaining
KV-1 tanks reached the town's outskirts and systematically reduced the German pillboxes. By nightfall Urdom had been liberated, but the defenders still held out along the road east and west of the ruined town and their overall defense line was still intact. Moreover, 39th Army had taken such severe losses that it would have to pause for regrouping and reinforcements. 39th Army was ordered to return to the offensive on December 8 as the offensive was collapsing on other sectors. However, the 373rd had been redeployed westward, to positions directly south of Molodoi Tud, and played little role in this renewed fighting. In a
STAVKA directive (No. 11029) of January 4, 1943, the chief of staff of Kalinin Front was notified of several shortcomings in the organization of its defenses, including the use of ski troops: ==Into Ukraine==