Answer: War Powers Act.
Explanation: The “War Powers Act” of 1973 ensures that both the legislature and President of the United States must mutually agree to escalate military operations abroad. Otherwise, the President must notify Congress if any armed troop interventions are authorized without congressional approval, and the act sets a limit to how long armed troops can stay in escalation/conflict zones without the approval of United States legislature.
Simply, this act was created to prevent another “Vietnam War” type of disaster.