The United States Marine Corps (USMC) is an independent branch of the US armed forces. The unit was established in November 1775, and the first branch of this unit was formed a year later. In the nineteenth and early twentieth centuries, US Marines served primarily in the region of South and Central America, guarding American interests in this part of the world. It was also then that the principle was established that it was the USMC that was deployed to the area of operations as the first among other units of the US armed forces. Corps soldiers fought in World War I, but they gained special fame in the course of bloody and heavy fights in the Pacific in 1941-1945, taking part in such battles as Guadalcanal (1942-1943), Tarawa (1943), Iwo-Jima and Okinawa (both from 1945). Often in the face of the enemy, the soldiers of this formation showed a lot of courage, an example of which can be, for example, John Basilone was awarded the Medal of Honor for his accomplishment during the battles on the Gudalcanal. After 1945, the soldiers of the Corps fought, for example, in the Korean War (1950-1953) or especially in the Vietnam War (1964 / 1965-1975), suffering heavy losses in the latter war. After the end of the Cold War, USMC soldiers took part in, for example, both Gulf Wars (1990-1991 and 2003). Currently, there are 182,000 soldiers in the Corps, and about 38,500 in the reserve. The motto of the Corps is the Latin motto Semper Fidelis (Polish always faithful).
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 armored division. From 1943, the full-time armored division consisted of three armored battalions, three mechanized infantry battalions, three artillery battalions and many support units. The exception was the 2nd and 3rd Panzer Divisions, which retained the structure with two armored regiments, three armored battalions each. For this reason, they were often called heavy armored divisions. The armored battalion of other divisions than the 2nd and 3rd consisted of three armored companies - three of medium tanks (M4 Sherman) and one of light tanks (M3 / M5 Stuart). In turn, the mechanized infantry battalion consisted of three infantry companies, a service company and a staff sub-unit. The American armored division also had, like the infantry division, a very strong artillery component, consisting of self-propelled artillery - most often M7 Priest howitzers, of which there were 54 full-time units in the division. In total, the American armored division consisted of, among others: approx. 11,000 men, approx. 250 tanks and approx. 500 M2 / M3 armored personnel carriers.