LONDON (Reuters) - The world should stand up to Washington’s bullying behavior, Iran’s foreign minister was quoted as saying on Sunday by state media in a letter to counterparts, as the top diplomat intensifies efforts to save a nuclear deal after a U.S. exit. In a letter from Iranian Foreign Minister Mohammad Javad Zarif to his counterparts last week, he asked “the remaining signatories and other trade partners” to “make up for Iran’s losses” caused by the U.S.