U.S. Marine Cpl. Kyler S. Barrett, a landing support specialist with Joint Task Force - Leeward Islands, assembles the Lightweight Water Purification System at Orient Beach, Saint Martin, Sept. 16, 2017. The Marines arrived to assess possible locations to set up their LWPS in order to produce potable water for communities on the island most affected by Hurricane Irma. At the request of partner nations, JTF-LI deployed aircraft and service members to areas in the eastern Caribbean Sea impacted by the storm. The task force is a U.S. military unit composed of Marines, Soldiers, Sailors, and Airmen, and represents U.S. Southern Command’s primary response to Hurricane Irma. - U.S. Marine Cpl. Kyler S. Barrett, a landing support specialist with Joint Task Force - Leeward Islands, assembles the Lightweight Water Purification System at Orient Beach, Saint Martin, Sept. 16, 2017. The Marines arrived to assess possible locations to set up their LWPS in order to produce potable water for communities on the island most affected by Hurricane Irma. At the request of partner nations, JTF-LI deployed aircraft and service members to areas in the eastern Caribbean Sea impacted by the storm. The task force is a U.S. military unit composed of Marines, Soldiers, Sailors, and Airmen, and represents U.S. Southern Command’s primary response to Hurricane Irma.