 In 1917, USS Mommy made history when she became the first ship to refuel another vessel at sea. This achievement made it possible for six U.S. Navy destroyers to sail to the United Kingdom in support of fight during World War I. From 97 years, underway replenishment techniques and technology has enabled the Navy to deliver fuel, food, ammunition, spare parts, and even mail to Navy combatant ships at sea. There are currently 31 ships in the Navy's combat logistics force, manned with more than 3,000 military sea-lift command civil service mariners. By remaining underway, ships complete more exercises and missions, enabling the fleet to remain on the forefront of maritime security and project power where it matters, when it matters. From the Defense Media Activity, I'm Petty Officer Andrew Johnson.