Akihiko Okamura

Okamura began training in medicine but dropped out, joining the editorial team at New Weekly in 1961. Assigned to a story in Bangkok he turned to photography, going on to record international conflicts including the war in Vietnam. Here he photographed, among others, the prisoners of war held by the Vietcong after he himself was held by them for 53 days. His work appeared in Life and other global magazines.  He moved his family to Dublin and began to photograph the Troubles in Derry soon after.

https://www.timeout.com/tokyo/art/akihiko-okamura-all-about-life-and-death