Complex sentence: Dr Gill has a long record of research and publication on international and regional security issues, including regarding arms control, non-proliferation, peacekeeping and military-technical development, especially with regard to China and Asia.
Split into simpler sentences: Dr Gill has a long record of research and publication on both international and regional security issues. These include arms control, non-proliferation, peacekeeping and military-technical development--and all mainly with regard to China and Asia.