JOINT BASE LEWIS-McCHORD, Wash. — An M142 High Mobility Artillery Rocket System (HIMARS) moves off of a C-17 Globemaster III aircraft. The HIMARS races to its firing spot, the launcher-loader module moves into position, and the operator presses the button. Within a matter of minutes, six rockets head towards their targets and the HIMARS moves back onto the C-17 to return to its base location.