The Iowa Army Ammunition Plant is shut down to safely remove highly explosive lead azide, a chemical used in munitions, the U.S. Army reveals.

OTTAWA — The federal government is pouring $1.4 billion into the munitions industry to build up the domestic supply of heavy artillery shells and reduce Canada's reliance on foreign suppliers.

A 666-page Marine Corps investigation found a rare fuze defect — a "one in a million" malfunction — caused a live artillery shell to explode over Interstate 5 near Camp Pendleton last October, ...

Iran hit a Saudi refinery on the Red Sea and set Qatari liquefied natural gas facilities and two Kuwaiti oil refineries ...