During the Vietnam War, why did antiwar protests increase after US forces attacked Viet Cong bases and supply lines along the Ho Chi Minh trail?

The attacks extended US military operations into Cambodia to target Viet Cong bases and supply routes connected to the Ho Chi Minh Trail. Many protesters viewed this expansion as an escalation of the war, rather than a step toward ending US involvement. Therefore, the correct choice is “Protestors saw the attacks as an escalation of the war.”

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