The document summarizes key events in the Vietnam War in the 1970s and Nixon's presidency. It describes how public support for the war waned as the human costs mounted. Nixon became president in 1968 promising to end the war with "peace with honor" but prolonged it for several more years through bombing of Cambodia and Laos. His policies of Vietnamization gradually removed US troops but Congress revoked support for the war. Protests against the war grew more intense, exemplified by the shooting of student protestors at Kent State. The Pentagon Papers revealed the US never had a plan to end the war. Nixon appealed to the "silent majority" but the legacy of Vietnam included reforms like the War Powers Act limiting presidential war powers.