The Peacekeeper

The Peacekeeper is a 1997 action film directed by Frédéric Forestier, and starring Dolph Lundgren, Michael Sarrazin, Montel Williams, and Roy Scheider. The film follows U.S. Air Force Major Frank Cross, who is the only man who can prevent the president being assassinated. He must also prevent an impending nuclear holocaust. The threat is from a terrorist group, which has stolen the President's personal communications computer; it has the capability of launching the U.S. arsenal. The film was shot on location in the city of Montreal, Quebec.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.