John Hemmings is Director of the Asia Studies Centre at the Henry Jackson Society and an Adjunct Fellow at the Center for Strategic and International Studies.  Prior to his doctoral studies, he was a visiting fellow at Pacific Forum CSIS and a research analyst at the Royal United Services Institute in Whitehall, working on Northeast Asia defense and security policies.

Over the duration of his doctoral research, John had a number of roles related to Asian foreign policy. In 2013 and 2015, he was the UK Secretariat for the UK-Japan 21st Century Group, and in 2015, became a founding member of the CSCAP-EU committee, based in Brussels. He has given briefings to US Forces Korea, to the Foreign and Commonwealth Office, and to the UN Commission of Inquiry on Human Rights in the DPRK.