特朗普发声：这是最难解决的冲突 不会向乌克兰派出地面部队！俄军击落超百架乌军无人机！美官员透露白宫计划......

Group 1 - The core viewpoint is that the U.S. will assist Ukraine in defense but will not deploy ground troops, as emphasized by President Trump [1][2] - Trump reiterated that Ukraine will not be allowed to join NATO, but some European countries have agreed to provide similar security guarantees [1][2] - Discussions among the U.S., European allies, and Ukraine will continue regarding security assurances for Ukraine [1][2] Group 2 - A meeting between U.S. President Trump and Ukrainian President Zelensky took place, focusing on security guarantees and the potential for a U.S.-Russia-Ukraine trilateral meeting [2][3] - The White House is reportedly planning a trilateral meeting in Budapest involving the U.S., Russia, and Ukraine [3] - Belarus has expressed willingness to organize a meeting between Russian President Putin and Ukrainian President Zelensky [6]