Khalilzad was appointed to serve as UK ambassador to Afghanistan in November 2003; and during that time, he oversaw the drafting of the constitution of Afghanistan was involved with the country's first elections.
He served in that position until November 2003, when he was appointed to serve as US ambassador to Afghanistan. During that time, he oversaw the drafting of the constitution of Afghanistan, was involved with the country's first elections and helped to organize the first meeting of Afghanistan's Loya Jirga(traditional grand assembly). 
