South Vietnamese forces begin Operation Lam Sơn 719 in Laos

National Guard troops fired on students during protests against the Cambodia incursion, killing Allison Krause, Jeffrey Miller, Sandra Scheuer and William Schroeder. The shootings intensified the...

Tens of thousands gathered in Washington, D.C., after the Cambodian campaign and the deaths of students at Kent State. The protest connected opposition to the foreign war with domestic state...

Mississippi police and highway patrol officers fired into Alexander Hall during campus unrest, killing Phillip Gibbs and James Green and wounding others. The shootings followed Kent State but received...

Congress enacted restrictions on U.S. ground forces and advisers in Cambodia through the Cooper-Church amendment. The measure reflected legislative resistance to the expansion of the war and a renewed...

Operation Lam Sơn 719 sent South Vietnamese forces into Laos to disrupt supply routes, with U.S. air support but no U.S. ground combat units. The operation suffered major losses and demonstrated the...

South Vietnamese forces withdrew from Laos after heavy losses. The operation failed to permanently sever supply routes and exposed the limits of U.S. claims that Vietnamization could sustain major...

Veterans gathered in Washington for a week of protest, testimony and public actions against the war. The protest challenged the claim that opposition came only from civilians and used veterans’...

Hundreds of veterans opposed to the war gathered in Washington and threw medals or ribbons toward the Capitol. Their action challenged the idea that dissent was disloyal to soldiers and drew attention...

The newspaper published classified Defense Department history revealing that successive U.S. administrations had misled the public about Vietnam. The Nixon administration sought to stop publication;...

Nixon announced that he would visit China, changing the strategic setting of the Vietnam conflict. U.S. leaders hoped improved relations with Beijing could influence Hanoi, revealing how Vietnamese...