LANL in 2011 completed the manufacture of the 29th war-reserve-quality plutonium pit for the W88 warhead, as part of the U.S. Stockpile Stewardship Program. The W88 is the backbone of the nation's submarine deterrent force.

LANL in 2011 completed the manufacture of the 29th war-reserve-quality plutonium pit for the W88 warhead, as part of the U.S. Stockpile Stewardship Program.

The W88 is the backbone of the nation's submarine deterrent force.