Most US soldiers were transported to foreign duty stations by Naval transport until the Vietnam era when transport shifted primarily to airplane.
The Ak-47 is not a weapon issued by the US Army for its combat units. However since it is often found on battlefields around the world, US army troops are often trained in in how to use it.
By the use of "force of arms." Another words the Mexican army was defeated on the battlefields.
the u.s European command
The battlefields of the US Civil War were booming from artillery shots and rifle and musket shots. There was smoke and shouting among the soldiers and the galloping cavalry horses.
Spain and the US were not battlefields.
they used army forces to prevent them
Grain s transported by 1 ship called the jherem.
WW2 started for the US with a memorable battle called the Attack of Pearl Harbor.
The government wouldn't want to release that information.
Ships
There are no school subjects required for enlistment in the US Army, however, a good understanding of history (world, European, and American), and government, and good physical fitness are a plus.
The US Army, like the US Department of Defense, is supported by the tax payer. The US Army Corp of Engineers is part of the US Army; just like the US Army Artillery, or US Army Armor, or US Army Infantry.