Anglo-Soviet Agreement

A secret part of the agreement defined the areas of Eastern Europe that fell into their respective spheres of influence.

[2] On 22 June 1941 Germany began an attack along the whole length of its border with the USSR from the Baltic states to Ukraine.

"[10] The Arctic convoys from Britain to the Soviet Union began the following month as did the joint Anglo-Soviet invasion of Iran which opened up a supply route to the USSR.

In Iran, Rezā Shāh was removed from power and the new Shah, Crown Prince Mohammad Reza Pahlavi, signed a Tripartite Treaty Alliance with Britain and the Soviet Union in January 1942 to aid the allied war effort in a non-military way.

[13] According to Lynn Davis, the United States perceived the agreement to mean that the Soviet Union intended to support the postwar re-establishment of independence of Poland, Czechoslovakia and Yugoslavia.