What event led to the anti-war protest at kent state in 1970?
a. the tet offensive
b. the u. s. invasion of cambodia
c. the signing of the gulf of tonkin resolution
d. the u. s troop withdrawal from south vietnam

Option B

Explanation:

The U.S invasion of Cambodia, is the correct option.

Kent State University protest was the protest by students of Kent State University against Richard Nixon's announcement to bomb Cambodia, which was neutral during the Vietnam war. This protest turned violent when Ohio National Guard members opened fire at them. The other important reason was the revelations about  President Lyndon Johnson, that he misled the country about the Gulf of Tonkin Incident and the increasing number of US soldiers who were dying in the war. The United States public was divided about the Vietnam issue.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).