Len Aldis (L), chairman of Britain-Vietnam Friendship Society, talks with two brothers Le Van Binh (R), 28, and Le Van Thuan, 26, two Agent Orange victims at the opening of the exhibition ’50 years of Agent Orange/Dioxin disaster in Vietnam’ at War Remnants Museum. Aldis, 80, has voluntarily helped Vietnamese Agent Orange victims for 22 years Two foreign tourists inspect photos at an exhibition to mark 50 years of Agent Orange/dioxin disaster in Vietnam at Lam Son Park in HCMC’s District 1. The exhibition runs until August 15 To prevent the march of the Vietnamese liberation army 50 years ago on August 10, 1960 the U.S. Air Force sprayed Agent Orange defoliant onto the mountainous region along the Vietnam-Laos border to start the longest chemical warfare in history. The war has been long over but the horrific legacy of this inhumane military act is still there for all to see. Apart from the destruction of some immense forests, thousands of Agent Orange/dioxin victims and their families are struggling with their daily pain to this day. Together with many localities nationwide, HCMC on Tuesday started numerous activities to mark this catastrophic event. Here are two snapshots taken by the Daily’s photo-journalist Kinh Luan around the city.