easily captured the village, but the central group was caught in an ambush by the Poles near the forest and had to flee. The third group was advancing alongside the Polish positions in the forest, completely unaware of the Polish forces several hundred metres away. When the Polish machine guns and anti-tank guns opened fire, the group was almost annihilated before it could respond. Nevertheless, the Polish northern flank was endangered and the Germans had uncovered its positions. To counter the threat, Col. Filipowicz ordered the 12th Uhlans Regiment under Andrzej Kuczek, until then held in reserve, to strengthen the positions of the 19th Regiment. The newly arrived units were fresh, yet already battle-hardened in the first skirmishes in the early morning, which helped Polish morale. The German Assault At 10 a.m. , the Wehrmacht started an assault on the northern flank, but were repelled from most positions with significant losses on both sides. Fifteen minutes later the German 4th Panzer Division repeated the attack, this time with artillery support and air cover. The assault was planned in three directions: Towards the positions of the 19th Regiment and to the north, in order to outflank the brigade Towards the village of Mokra itself, with approximately 100 tanks and AFVs Towards the weakened 4th Battalion of the 84th Infantry Regiment The northern assault was carried out quickly. Under heavy covering fire, the German tanks, a mixture of Panzer Is and Panzer IIs, managed to break into the forest and secured a road leading across the railway line to the village of Izbiska Duże, to the north of the Polish headquarters. At 10.30 a.m., the Polish 4th Squadron of the dismounted 19th Cavalry Regiment was attacked from behind and pushed out of the forest. This threatened the separation of their 19th and 21st Regiments. Colonel Filipowicz ordered the 19th Regiment to withdraw to the other side of the railway, but the way was already held by German tanks and the unit was effectively surrounded. However, the Polish defence was reinforced by the arrival of the Armoured train No. 53, known as Śmiały ("Bold"), which arrived on the battlefield just as the German tanks were crossing the railway line. It stopped in the middle of the German column and opened fire on the German tanks at close range with its two 75mm guns and heavy machine guns. The German column was dispersed and