Speaking at the Halifax International Security Forum in Nova Scotia, Canada, Gen. John Hyten, who is the commander of US Strategic Command, shared what would happen if he were ordered to launch a nuclear strike.

“I provide advice to the President,” Hyten said. “He’ll tell me what to do, and if it’s illegal, guess what’s going to happen? I’m gonna say, ‘Mr. President, that’s illegal.’ Guess what he’s going to do? He’s going to say, ‘What would be legal?’ And we’ll come up with options of a mix of capabilities to respond to whatever the situation is, and that’s the way it works. It’s not that complicated.”