Facing twin challenges in the Persian Gulf, President Donald Trump said in an interview with TIME Monday that he might take military action to prevent Iran from getting a nuclear weapon, but cast doubt on going to war to protect international oil supplies. “I would certainly go over nuclear weapons,” the president said when asked what moves would lead him to consider going to war with Iran, “and I would keep the other a question mark.” Just hours earlier, Iran announced an escalation of its nuclear program, saying that within 10 days it will breach the limit on its stockpile of enriched uranium that was set under a 2015 nuclear deal with world powers. Last week, U.S.