Complex sentence: However, due to the limited resources of war time, the attention given to uranium project was insufficient, and the situation changed only after the Soviet victory over Germany and the nuclear bomb tests conducted by the USA in July 1945.
Split into simpler sentences: However, due to the limited resources of war time, the attention given to uranium project was insufficient. The situation changed only after the Soviet victory over Germany and the nuclear bomb tests conducted by the USA in July 1945.