He specialises in the politics and security of the Indo-Pacific including great and middle power dynamics, the South China Sea, ASEAN, the drivers and constraints to international collaboration and competition, and the pre-conditions to peace and post-conflict resolution. Christopher lived in Japan and Singapore for five years and has nearly two decades of field experience throughout Asia including all the ASEAN nations plus Japan, South Korea, and China. Christopher has completed over fifty publications including books (2 sole authored and 2 edited), journal articles, chapters, conference papers, commentaries, and reports. These works have also addressed the politics, security, and foreign policy approaches of Myanmar, Brunei, Laos, Indonesia, Vietnam, and Australia.