Final answer:
Marines have been involved in various operations such as peacekeeping, humanitarian assistance, and training exercises. They have played roles in stabilizing Caribbean nations in the early 20th century and more recently have participated in operations in Somalia and against the Taliban in Afghanistan.
Step-by-step explanation:
Since the Global War on Terror, Marines have participated in a variety of military operations other than war. These include peacekeeping operations, humanitarian assistance, disaster relief missions, and training exercises designed to promote stability and foster relationships with other nations. During the early 20th century, Marines were involved in interventions to protect U.S. interests and maintain stability in Caribbean countries such as Nicaragua, the Dominican Republic, and Haiti. These operations often aimed at quelling unrest or establishing order in politically volatile situations, and sometimes led to long-term involvement in nation-building efforts.In more recent history, beyond the most notable conflicts in Iraq and Afghanistan, Marines have been engaged in other parts of the world. For example, they played a role in the peacekeeping mission in Somalia, which included the prominent 1993 Battle of Mogadishu, and participated in counter-insurgency efforts against Taliban forces in Afghanistan's Helmand Province. Additionally, the Marines have been active in handling crises that occasionally arise from global military deployments and international tensions.Overall, the flexibility and rapid deployment capability of U.S. Marines allow them to serve in diverse roles that extend well beyond traditional warfare, contributing to the United States’ broader foreign policy objectives and responses to international crises.