Vice President Kamala Harris began a trip to Asia yesterday where she will offer reassurances of Washington’s commitment to the region after the chaotic US pullout from Afghanistan and Taliban takeover. The hardline Islamists’ swift return to power a week ago, and desperate scenes of thousands trying to flee, have cast another shadow over the United States’ status as a global superpower. But on her visit, which includes stops in Singapore and Vietnam, Harris will seek to allay concerns about US dependability. “The vice president will make clear throughout the trip that we do have an enduring commitment to the region,” said a senior US official. Harris, an Asian-American whose mother was of Indian origin, landed in Singapore yesterday and will start her activities today by meeting the city-state’s leaders.