Already after the first experiences of fighting in North Africa at the turn of 1942-1943, the US Army changed the position of the American infantry division. From 1943 onwards, each infantry division had three full-time infantry regiments, in turn composed of three infantry battalions. In addition, the infantry regiment also included other units, for example: an anti-tank company, an artillery company or a staff company. In total, the US Army's infantry regiment numbered approximately 3,100 soldiers. It should also be remembered that the division also included a strong artillery component consisting of four artillery battalions - 3 light and 1 medium, most often armed with 105 and 155 mm howitzers. There was also, among others, an engineering battalion, a repair company, a reconnaissance unit and a Military Police platoon. In total, the US Infantry Division numbered approximately 14,200 people from 1943. It quite clearly dominated the artillery over the German division and had much better and - above all - fully motorized means of transport, which made it a highly mobile tactical formation. It also had much richer "individual" anti-tank weapons in the form of a large number of bazooka launchers, of which there were over 500 in the entire division.
The American 10th Mountain Division was formed in July 1943, based on the 87th Mountain Infantry Battalion already formed in December 1941. The division, at the time of its formation, was composed of three infantry regiments and was initially called the 10th Light Division, but received the proper name only in November 1944. It is worth adding that she spent a large part of 1943 and almost the entire year 1944 on training and did not enter the action until the beginning of 1945. It was directed to the fighting in Italy, where it began its combat trail on January 28, 1945. Thanks to specialized training and other equipment, it performed much better in the Apennines than traditional infantry units. It was, among others, thanks to the actions of the 10th Mountain Division that the Allied forces managed to relatively quickly reach the Po valley in April 1945. Later, the division crossed that river and came as far as Lake Garda. After the end of World War II, it performed occupation tasks in Italy. During World War II, the division lost about 990 killed and about 4,200 wounded.