The North Atlantic Treaty Organization (NATO) is starting its annual nuclear exercise “Steadfast Noon” on Monday, NATO has informed in a statement. “Nuclear deterrence is the cornerstone of Allied security,” NATO Secretary General Mark Rutte said. “Steadfast Noon is an important test of the Alliance's nuclear deterrent and sends a clear message to any adversary that NATO will protect and defend all Allies.” 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, refueling 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. As noted in the aforesaid statement, NATO is taking steps to ensure the safety, security, effectiveness and credibility of the Alliance’s nuclear deterrent. For example, this year, the first Allied F-35A fighter aircraft from the Netherlands were declared ready to perform nuclear roles. NATO’s Washington Summit declaration makes clear that “the fundamental purpose of NATO’s nuclear capability is to preserve peace, prevent coercion and deter aggression,” It states that “as long as nuclear weapons exist, NATO will remain a nuclear alliance."