US Vice President JD Vance declared Monday that a "very good foundation" had been laid for a successful final deal with Iran following direct talks between the two sides at a mountain-top resort in Switzerland.    The talks were the first stage of a two-month negotiating period set out under a preliminary deal agreed last week, aimed at ending the war launched by the United States and Israel on February 28. Iranian Foreign Minister Abbas Araghchi wrote on X that there had been "major progress