Respuesta :
The presidents which took office during a time of war were, Dwight Eisenhower, John Kennedy, Lyndon Johnson, Richard Nixon and Harry Truman. The war was well known as Vietnam conflict, which started from 1954 and continued till 1975.
What is a war?
War is generally defined as violent conflict between states or nations. Nations go to war for a variety of reasons. It has been argued that a nation will go to war if the benefits of war are deemed to outweigh the disadvantages, and if there is a sense that there is not another mutually agreeable solution.
War is caused by many things, including competition over land, religious conflicts, and nationalism. Imperialism, racism, and slavery have also been causes of armed conflict.
Thus, all the options are true as all 5 presidents were involved during war.
Learn more about a war here,
https://brainly.com/question/1120447
#SPJ2
