Complex sentence: In early 1944, the American Army provided six battalions of dedicated railway troops, about 4,700 men, by October 1944 they had raised the capacity to 4,400 tons and by January 1946 to 7,300 tons a day.
Split into simpler sentences: In early 1944, the American Army provided six battalions of dedicated railway troops, about 4,700 men. By October 1944 they had raised the capacity to 4,400 tonns and by January 1946 to 7,300 tons a day.