The United States entered the war because of the Germans' decision to resume the policy of unrestricted submarine warfare, and the so-called "Zimmerman telegram," intercepted by the British, in which Germany floated the idea of an alliance with Mexico. ... They abandoned it in the face of US pressure earlier in the war.
https://www.enotes.com/homework-help/why-did-united-states-enter-world-war-400883
The rule of law is the legal principle that law should govern a nation, as opposed to being governed by decisions of individual government officials. It primarily refers to the influence and authority of law within society, particularly as a constraint upon behaviour, including behaviour of government officials.
The primary travelers were actually young boys. I hope this helps!
The 14th Amendment provides that "All persons born or naturalized in the United States and subject to the jurisdictionthereof are citizens of the United States and of the state wherein they reside