Final answer:
The division of military power between the president and Congress creates a dynamic that encourages cooperation but also highlights their power struggle, with the president often holding initial action authority in conflicts like the Vietnam War.
Step-by-step explanation:
According to the essay, the effect of dividing control of the military power of the United States between Congress and the President is a push-and-pull dynamic that incentivizes cooperation but also showcases the power struggle. The War Powers Resolution sought to affirm Congressional authority but ultimately clarified presidential power in the early stages of military conflict. During wartime, such as in the case of the Vietnam War, this division of power reflects the ongoing debate over presidential versus congressional authority, with the president typically acting as the initiator of military action and Congress providing subsequent support or criticism.