In Saudi Arabia, U.S. marines held joint military exercises Wednesday with their Saudi counterparts on the King Abdulaziz Naval Base. The wargames along the Persian Gulf were widely seen as a warning to Iran. The joint exercises came as Houthi rebels in northern Yemen launched a new offensive, following a recent increase in the number of U.S.-backed, Saudi-led coalition airstrikes in Yemen. More than 100,000 people have died, and far more have been displaced, since Saudi Arabia began its war on Yemen in 2015 with the support of the Obama administration.