John Lennon was 20
<span>Paul McCartney was 18 </span>
<span>Ringo Starr was 20 and </span>
<span>George Harrison was 17</span>
Hitler's power was not checked when the US entered the war. The war with the US was between them and Japan. The USSR did join sides with the allies when Germany broke an treaty. However, the US did win the war between Japan.
President Theodore Roosevelt<span> became </span>known as the "trust buster" in 1904 when his administration used the Sherman Anti-Trust<span> Act to break up the Northern Securities Company.</span>