美副总统：美国将很快撤出伊朗，油价会回落的

Group 1 - The core viewpoint of the article is that the U.S. intends to withdraw from Iran after completing its military objectives, as stated by Vice President Vance [1] - Vance mentioned that the U.S. has completed all military goals, and the ongoing military actions are to ensure Iran loses its capability to threaten the U.S. [1] - The article highlights that the recent rise in U.S. domestic oil prices is a short-term market reaction to the U.S.-Iran conflict, and prices are expected to decline after the U.S. withdrawal [1] Group 2 - The U.S. military is preparing for a ground invasion of Iran, as indicated by the arrival of an amphibious assault ship in the Central Command area [2] - Iran has reportedly attacked two aluminum plants in the UAE and Bahrain that are associated with the U.S. [2]