An undated photo of Vietnamese national Trinh Xuan Thanh sitting on a park bench in Berlin. Thanh disappeared last month and resurfaced days later in Vietnam, where he had an outstanding warrant.
A bowl of pho, a beef and noodle soup, served in Ho Chi Minh City, formerly Saigon. Pho has a rich role in Vietnamese, Vietnamese-American, and now, American culture.
Andrea Nguyen for NPR
Vietnamese navy officers (in white) talk with U.S. sailors aboard the guided missile destroyer USS Chafee in the central Vietnamese city of Danang in 2012. The two countries have increased military cooperation in recent years and President Obama announced Monday that he was lifting the ban on weapons sales to Vietnam.
Hoang Dinh Nam/AFP/Getty Images