Luftwaffe bombed barricades and hit apartment buildings with incendiary bombs, causing many civilian casualties. At midday, the First Battalion of the ROA entered Prague and attacked the Germans; during its time in Prague, it disarmed around 10,000 German soldiers. An American reconnaissance patrol met with an ROA officer as well as Czech leaders. This was when the Czechs learnt of the demarcation line agreement and that the Third Army was not coming to liberate Prague. As a consequence, the Czech National Council, which had not been involved in negotiations with Bunyachenko, denounced the ROA. A Soviet liberation meant that they could not politically afford to endorse the ROA, whom Stalin considered traitors. Despite the rejection of the ROA, their aid to Prague became a point of friction between Moscow and Czechoslovakia after the war. 7 May Under the terms of the provisional unconditional surrender, signed in the early hours of 7 May, German forces had a forty-eight-hour grace period to cease offensive operations. Eisenhower hoped that the capitulation would put an end to the fighting in Prague and therefore obviate American intervention. However, the German leadership was determined to use the grace period to move as many soldiers as possible westward to surrender to the Americans. Schörner denounced the rumours of a ceasefire in Prague and said that the truce did not apply to German forces fighting the Red Army or Czech insurgents. In order to gain control of Prague's transportation network, the Germans launched their strongest attack of the uprising. Waffen-SS armoured and artillery units arriving in Prague gradually punched through the barricades with several tank attacks. Intense fighting was accompanied with the SS use of Czech civilians as human shields and damage to the Old Town Hall and other historic buildings. When the Bartoš Command learnt of the Rheims surrender, it ordered an immediate ceasefire for Czech forces. This caused some confusion among the defenders, who were also suffering from desertion due to the worsening military situation. The ROA played a decisive role in slowing the progress of the Germans, but withdrew from Prague over the afternoon and evening in order to surrender to the US Army. Only a few ROA units stayed in the city, departing late on 8 May. With the bulk of the ROA gone, the poorly armed and untrained Czech insurgents fared badly against the reinforced German forces. By the end of the day,