Cholon, Ho Chi Minh City, Vietnam (Google Maps ⧉, OpenStreetMap ⧉)

"…the major, a crapulent devotee of the Chinese restaurants in Cholon."

"Back in Saigon, his function in the Special Branch had been to analyze Chinese-language communication and to keep track of the subterranean subterfuges of Cholon, where the National Liberation Front had constructed an underground network for political agitation, terrorist organizing, and black market smuggling."

"Our visit to Chinatown reminded me of an incident that had taken place in Cholon years before with the crapulent major and myself."