By mid July 1941 the majority of tanks, which comprised the 20 thousand Soviet tank fleet were lost. The Werhmacht troops were advancing impetuously and kept approaching the Russian capital. Each tank at the Soviet army at the front was treated as treasury. And that's when the lend-lease supplies proved very timely. The first English Matilda and Valentine tanks arrived in the USSR in September 1941, and a month later they were already tested in action during the battles near Moscow. In the third installment of The True Story of the Lend-Lease documentary series Paul Tadich continues to discover the unknown facts about the cooperation between the Soviet Union and the Allies during the World War II.