Which of the following was a tactic used by the us during the vietnam war? spreading agent orange disguising troops as the enemy fighting guerrilla warfare disguising troops as civilians

The answer is option 1: Spreading Agent Orange.

As the war was developing, the U.S. initiated the Operation Ranch Hand (1961-1971), an aggressive program of chemical warfare, where millions of gallons of various powerful and highly toxic herbicides were spread over Vietnam to destroy forests that covered the enemy. The Agent Orange was the herbicide more used. It was later proven that it caused major health problems for the individuals who were exposed.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: