Tanks of the United States US allies it was also used in conflicts beyond World War II. A 24-volt electrical system was used in the M4. Early Shermans mounted a 75 mm medium-velocity general-purpose gun. Although Ordnance began work on the Medium Tank T20 as a Sherman replacement, ultimately the Army decided to minimize production disruption by incorporating elements of other tank designs into the Sherman. Later M4A1, M4A2, and M4A3 models received the larger T23 turret with a high-velocity 76 mm M1 gun, which reduced the number of HE and smoke rounds carried and increased the number of anti-tank rounds. Later, the M4 and
The war to end war to war. Wells used the shorter form of the phrase, "the war to end war", in "In the Fourth Year" (1918), in which he noted that the phrase had "got into circulation" in the second half of 1914. In fact, it had become one of the most common catchphrases of the First World War. In later years, the term became associated with Woodrow Wilson, despite the fact that Wilson used the phrase only once. Along with the phrase "make the world safe for democracy", it embodied Wilson's conviction that U.S. entry into the war was necessary to preserve human freedom.