Original sentence: The Red Army eventually grew to form the largest army in history from the 1940s until the collapse of the Soviet Union in 1991, although China's People's Liberation Army may have exceeded the Red Army in size during some periods
Edited sentence: The Red Army eventually grew to form the largest army in history from the 1940s until the collapse of the Soviet Union in 1991, although China's People's Liberation Army may have eclipsed the Red Army in size during some periods