He led a team of Americans in shuttle diplomacy towards the end of the war, and was most responsible for convincing the warring parties to sign the peace agreement at Dayton, Ohio, in November 1995.
Predvodio je američki tim u "letećoj diplomaciji" pred kraj rata, i bio je najzasluzniji što su zaraćene strane pristale potpisati mirovni sporazum u Daytonu, u američkoj državi Ohio, u studenom 1995. godine.