The highest-ranking American diplomat to visit Myanmar in 14 years offered improved relations with the country on Wednesday, if its military regime moves toward democracy, putting into action the Obama administration's new policy of engagement with the isolated country. Assistant Secretary of State Kurt Campbell spoke after talks with both the ruling generals and a rare meeting with detained opposition leader Aung San Suu Kyi, a Nobel Peace Prize laureate, who has been under house arrest for most of the last two decades. Campbell called on the military, which has ruled the impoverished country since 1962, to open a dialogue with the opposition and ethnic minority groups, which are seeking a measure of autonomy. He also urged the military government to allow Suu Kyi more freedom to meet with people concerned with the political process, particularly her own party's senior executives. Speaking at Yangon Airport on Wednesday Campbell said the US "reaffirmed our commitment to a dialogue among the government, the opposition and ethnic groups. The goal of such a dialogue would be national reconciliation and a fully inclusive political process in Burma." Campbell called on the government to grant Aung San Suu Kyi greater freedoms and said the US was keen to strengthen ties with Myanmar once conditions including "reciprocal and concrete efforts by the Burmese government" had been met. Campbell and his deputy, Scot Marciel, are the highest-ranking American diplomats to visit Myanmar, also known as Burma, since 1995, when then-UN Ambassador Madeleine Albright made an official visit.