Follow that up by escorting every U.N. "diplomat" to the shore of the New York River, point them all towards home and tell 'em to swim for their lives.
Shoot any of the bastards that try coming back to shore, then level the U.N. building.
In the immortal words of the late Charles Lichenstein...”The members of the U.S. mission to the United Nations will be down at the dockside waving you a fond farewell as you sail off into the sunset.”