World War II (1939 - 1945): http://www.primaryhomeworkhelp.co.uk/Britain.html

World War II Teaching Resources: https://junior.scholastic.com/pages/content-hubs/world-war-ii.html

World War II (1939 - 1945) Lesson Plans: https://study.com/academy/topic/world-war-ii-1939-1945-lesson-plans.html

World War II for Children: https://www.theschoolrun.com/homework-help/world-war-2

World War II Songs: https://www.bbc.co.uk/teach/school-radio/history-ks2-world-war-2-clips-ww2-songs-index/zbg9gwx

USSR Involvement in World War II: https://study.com/academy/lesson/ussr-involvement-in-world-war-ii.html

Invasion of the Soviet Union, 1941: https://www.britannica.com/event/World-War-II/Invasion-of-the-Soviet-Union-1941