I believe that the answer is c. All of these.
Answer: The U.S. used Native American languages during the 2nd World War because these languages were in a way primitive, and only a hand full of people knew it. This was basically a way of talking in code so that almost no one could decipher it. The main language used was Navajo.
The Vietnam war. He led us into the Vietnam war
Answer:
jaguars
Explanation:
The ancient people of Mesoamerica found these creatures important to them
Here are some reasons why they were important
1. they found the jaguars were more than an animal it was a divine and graceful creature.
2.jaguars were found in art in almost every Mesoamerica civilization.
These alliances that took place before World War 1 in a way started the war. For an example, Germany was in an alliance with Hungary and when they declared war against Serbia, Germany had to fight with them, and so on, finally creating World War 1. Within weeks, Germany declared war with other countries that declared war with others, creating a "domino effect" which just means that most countries just started fighting with one another, either because they declared war with them or because their allies did.
~Hope I helped!~