Formed as US Revenue Marine, the US Coast Guard was part of the US Treasury Service, but is now under Homeland Security. In the event of a declared war, it would fall under the US Navy.

On August 7, 1942, more than 19,000 Marines invaded Guadalcanal with orders to seize and hold the tropical island, in the first U.S. offensive of the Pacific War.

The U.S. Navy commissions the USS American Legion, and her WWII career begins, including landing some of the first troops at Guadalcanal, supplying a hospital, conducting rescue missions.

11 Marines, one Navy Corpsman and one Army soldier were killed in a suicide bomber attack at the Kabul Airport days before US withdrawal.

The US ends twenty years of war in Afghanistan with the final withdrawal from Kabul. American citizens an Afghan allies are left behind.