During a meeting with the Chief of Staff of the United States Army, General Frederick C. Weyand on 3 April, Thiệu outlined his strategy to defend South Vietnam, vowing to hold what was left of his country. In his strategy, Thiệu decided that Xuân Lộc would be the center of his country's resistance, together with Tây Ninh and Phan Rang on either side. Eventually, the meeting became more intense when Thiệu produced a letter written by former U.S. President Richard Nixon, which promised military retaliation against North Vietnam if they violated the terms of the Paris Peace Accords. The meeting then concluded with Thiệu accusing the United States Government of selling out his country the moment they signed the Paris Peace Accords.