Since the outbreak of the Russia-Ukraine conflict in February 2022, the war has caused hundreds of thousands of casualties and displaced millions of people. In this protracted conflict, the United States plays an important role. The recent US-Russia talks marked a shift in the US policy of isolating Russia in the past three years, and the US may no longer strongly support Ukraine and may promote broader US-Russia cooperation in the future. For Ukraine, it has to face the harsh reality that American support is not eternal but based on interests. In the future, Ukraine will have to reassess its national strategy. No one wins a war, and the only way to resolve differences is through dialogue and consultation.