A Marine with Fox Company, 2nd Battalion, 7th Marine Regiment tests out the instant messaging function on a tablet device at Marine Corps Air Station Yuma, Arizona, Oct. 14, 2015. The tablets are wirelessly connected through an encrypted internal Wi-Fi network allowing Marines to coordinate and maneuver more efficiently in a tactical environment while securely using various applications on the devices. - A Marine with Fox Company, 2nd Battalion, 7th Marine Regiment tests out the instant messaging function on a tablet device at Marine Corps Air Station Yuma, Arizona, Oct. 14, 2015. The tablets are wirelessly connected through an encrypted internal Wi-Fi network allowing Marines to coordinate and maneuver more efficiently in a tactical environment while securely using various applications on the devices.