The North Atlantic Alliance launches Steadfast Noon. NATO's nuclear deterrence exercise is held every October. “Nuclear deterrence is the cornerstone of Allied security,” NATO Secretary General Mark Rutte says.

This Monday, NATO launches its annual nuclear exercise, “Steadfast Noon,” a large-scale operation involving more than 60 aircraft and 2,000 troops over the course of two weeks. Though no real weapons will be used,

This year's Steadfast Noon exercises will primarily take place over the host countries, Belgium and the Netherlands, with additional flights over Denmark, the United Kingdom, and the North Sea, NATO said.