The U.S. is ramping up air and naval firepower in the Middle East as high-stakes talks with Iran kick off in Geneva. The post US ramps up military presence in Middle East ahead of Iran nuclear talks

Washington: American President Donald Trump said he would be “involved in those talks indirectly” as US and Iranian officials prepare to meet in Geneva, expressing hope for a breakthrough while warning of consequences if diplomacy fails.

Iran and the U.S. traded threats and warnings even as negotiators sat down to discuss a deal to avert a war, but Tehran says "we now have a clearer path ahead."

Iranian Supreme Leader Ali Khamenei threatened U.S. President Donald Trump and the U.S. as key negotiations between the countries begin in Geneva on Tuesday.