(ANSA) - WARSAW, 14 FEB - ''We have said in unison that we need to increase the pressure on Iran'', but ''different countries can reach different conclusions'' on what to do, US Secretary of State Mike Pompeo said at the end of the Warsaw conference. Pompeo pointed out that among the more than 60 countries attending the meeting, no one attempted to ''defend'' the Islamic Republic, while many expressed concern that threats from the Middle East could affect other regions. (ANSA).