NATO’s nuclear exercise is a routine and recurring training activity that happens every October. Steadfast Noon involves 2,000 military personnel from eight airbases and a variety of aircraft types, including nuclear-capable jets, bombers, fighter escorts, refuelling aircraft and planes capable of reconnaissance and electronic warfare. This year’s exercise involves flights mainly over host countries Belgium and the Netherlands and in airspace over Denmark, the United Kingdom and the North Sea. Planning for the exercise began a year ago and thirteen Allies will send aircraft to take part in the drills.