Final answer:
The President can deploy military forces as a police action using their power as Commander in Chief, with the requirement to notify Congress within 48 hours and withdraw troops within sixty days without Congressional approval as per the War Powers Act.
Step-by-step explanation:
The President can introduce military troops as a police action by utilizing their role as the Commander in Chief of the United States armed forces. According to the War Powers Act, the President is permitted to send troops without congressional approval in cases of national emergency, but must notify Congress within forty-eight hours of this action and typically must withdraw forces within sixty days if Congress does not authorize further action or declare war.
In history, deployments have been used to address insurrections, such as during George Washington's presidency, or for foreign policy efforts, such as the U.S. role in enforcing a no-fly zone over Libya in 2011.
Although all presidents have faced criticism for their use of military power, Congress has not moved to reverse a presidential decision on the use of force. The initial use of force has become a presidential prerogative, as seen when President Bush referred to the invasion of Panama to arrest Noriega as a police action, despite international perception of it as an outright invasion.