Simplify the following text for a Grade 7 native English-speaking person.
Original: In fact the area surrounding Torgau initially occupied by U.S. forces was later , in July 1945 , given over to Soviet forces in compliance with the Yalta agreement .
Simplified: In fact the area surrounding Torgau at first occupied by U.S. forces was later , in July 1945 , given over to Soviet forces .