joint u.s.-south korean naval drills are under way against the backdrop of tensions with the north. the north korean media has called donald trump a strangler of peace. and pyongyang says the military exercises create a hair trigger situation on the korean peninsula. the u.s. secretary of state tells cnn no matter the rhetoric, the white house prefers diplomacy. >> i think he does want to be clear with kim jong un and that regime in north korea that he has military preparations ready to go. and he has those military options on the table. and we have spent actual time perfecting those. but be clear, the president has also made clear to me that he wants this solved diplomatically. he is not seeking to go to war. he has made it clear to me to continue my diplomatic efforts, which we are, and as i've told others, the diplomatic efforts