最新消息，美军准备地面入侵伊朗？

Group 1 - The article discusses the escalating tensions in the Middle East, particularly focusing on military actions involving Iran and Israel [2] - On March 28, Israeli air forces conducted a large-scale airstrike in Tehran, targeting dozens of Iranian infrastructure sites, marking the third round of attacks that day [4][5] - Israeli military claims to have struck approximately 90% of Iran's key military industrial facilities, which are responsible for developing weapons that threaten Israel [6] Group 2 - The U.S. military is preparing for ground operations in Iran, with approximately 3,500 sailors and Marines arriving in the Central Command area aboard the "Liberty" amphibious assault ship [3][7] - Iran's military has warned that it will target universities in Israel and U.S. universities in the region as legitimate targets in response to recent attacks on Iranian facilities [10] - The Iranian Revolutionary Guard reported that an American F-16 fighter jet was hit during their military operations, which included drone strikes on U.S. and Israeli industrial sites [10]