According to Soviet sources, for the invasion of Soviet Union in July, 1941, Germany deployed 4.6 million men in 152 divisions and 2 separate brigades, 42,000 artillery, 4,000 tanks, and 4,000 aircraft. Co-belligerent Finland and Axis powers Hungary, Italy, and Romania deployed an additional 0.9 million men in 29 divisions and 16 brigades, 5,200 artillery, 300 tanks, and 1,000 aircraft. However, David Glantz puts the strength of the German forces and their allies in June 1941 at 3,767,000