Secretary of State Mike Pompeo has canceled a visit to Moscow today and is instead heading to Brussels to meet with European leaders to discuss “recent threatening actions and statements” from Iran, according to the State Department. The nature of the threats has not been specified, but the U.S. announced it is sending additional bombers and an aircraft carrier to the Persian Gulf to act as a “deterrent.” The European Union reiterated today its continued support for the Iran nuclear deal in the face of mounting tensions with the U.S.

Meanwhile, Iranian President Hassan Rouhani is calling for internal unity as the nation faces sanctions that could have worse consequences than the war with Iraq in the 1980s and that he said amount to “a war unprecedented in the history of our Islamic revolution.”