facilities in iraq allegedly by iranian-backed initial as. >> we will not -- initimilitias. >> we will not let iran using a proxy force to attack american interests. iran will be held accountable for those incidents. >> reporter: even military? >> they'll be held accountable. if they're responsible for the arming and training of these militias, we're going to go to the source. >> reporter: pompeo doubled down on his for meeting with iranian officials and counseling them on a strategy. until president trump pulled out of a nuclear teal with aran. >> how is this jeopardizing your efforts right now? >> no american and no former secretary of state should be actively seeking to undermine the foreign policy of the united states of america and frankly, that's secretary kaer a's problem. >> pompeo said he will begin negotiations with north korea this week.