Answer:
• He was worried about losing South Vietnam to communism.
• He wanted to concentrate on his domestic social programs rather than increase US involvement in Vietnam.
Explanation:
President Lyndon Baines Johnson was the Vice President to President John Kennedy and succeeded him after his assassination to become the 36th President of the United States of America from November 22, 1963 to January 20, 1969.
The Vietnam war started due to the war between the communist government of North Vietnam and South Vietnam. The United States of America was an ally to South Vietnam , always sending them the help they needed through the US military.
When President Johnson assumed the office of the President, South Vietnam was about to lose the war, and his attitude towards the war was that he feared losing South Vietnam to communism and he wanted to concentrate on his domestic social programs rather than increase US involvement in Vietnam.
In August 1964, two US Navy ships at the Gulf of Tonkin were attacked by the North Vietnam. Because of the reports President Johnson received about the incident, he acted quickly by petitioning the US Congress to allow him to increase the presence of the US military forces at Indochina.
The Gulf of Tonkin Resolution was passed in August 1964, permitting the President to intervene and to take whatever was necessary measures that was needed in order to restore peace back to Vietnam and South Asia.
