Group 1 - The U.S. military conducted airstrikes in Yemen's Marib province on April 23, with multiple attacks reported [1] - The Houthi forces claimed to have shot down a U.S. MQ-9 drone, marking the seventh such drone downed in April and the 22nd since the beginning of the conflict [1][3] - Houthi forces also launched missile and drone attacks against U.S. aircraft carriers in the region [3] Group 2 - The U.S. has expanded its military operations in Yemen, with airstrikes reported in multiple provinces including Al Hudaydah and Saada [1][4] - The value of an MQ-9 drone is approximately $30 million, with reports indicating that over 16 drones have been lost since October 2023, totaling more than $500 million in losses [4] - Recent protests in Yemen have expressed anger towards U.S. airstrikes on civilian targets, highlighting the local population's support for Palestinian causes [7]

Group 1 - The Houthi armed group has conducted drone attacks on military targets in Tel Aviv, Israel, and on multiple U.S. naval vessels, including the USS Harry S. Truman aircraft carrier [1][4][6] - U.S. airstrikes in Yemen have resulted in significant casualties, with reports indicating 3 deaths in Sana'a and 12 deaths, including women and children, in Al Hudaydah [3][4] - Since March 15, U.S. airstrikes have caused 257 casualties in Yemen, including 92 deaths and 165 injuries [7] Group 2 - The U.S. has increased its military presence in the region, deploying the USS Carl Vinson carrier strike group to the Middle East, raising the number of U.S. carrier strike groups in the area to two [9][11] - The U.S. military has expanded its airstrike operations against the Houthi group, with President Trump stating that the campaign will continue for an extended period [6][11] - Iran has condemned the U.S. airstrikes in Yemen, asserting that the Houthi group operates independently and that Iran will respond decisively if threatened [10]