整理：中东局势跟踪（5月31日）

Group 1: Gaza Conflict - The U.S. has proposed a 60-day ceasefire plan for Gaza, which includes the release of 28 Israeli hostages in the first week, regardless of their condition. Permanent ceasefire would lead to the release of remaining hostages, and Israeli military actions will cease after the ceasefire agreement is implemented [1] - Hamas officials have acknowledged receiving Israel's response to the U.S. Middle East envoy's proposal, and Hamas leadership is currently evaluating the new proposal [1] - Israel claims that Hamas has not yet responded to the ceasefire agreement outline [1] - The Israeli Defense Minister stated that Hamas must either accept the U.S. proposal or face destruction [1] Group 2: Other Developments - Israel conducted airstrikes in Syria's Jebl al-Zawiya [2] - The Saudi Foreign Minister is set to make a rare visit to the West Bank on Sunday [2] - Israel plans to prevent Arab foreign ministers from entering Ramallah for a scheduled summit [2] - The German Foreign Minister indicated that more military aid to Israel will be authorized based on the humanitarian situation in Gaza [2] - Western powers are pushing for the IAEA to declare Iran in violation of non-proliferation obligations, which may provoke Tehran [2] - Trump suggested that the likelihood of reaching an agreement with Iran has increased, reiterating that Iran cannot possess nuclear weapons [2] - Saudi Defense Minister previously communicated to Iranian officials the importance of taking Trump's nuclear negotiation proposals seriously, as they provide a way to avoid war with Israel [2] - U.S. officials are preparing to submit a resolution draft to the IAEA Council, stating that Iran has not fulfilled its obligations [2]