Regionalism in emergency management

Paper details:

I need to add sections at the attached Literature review 1- regionalism theory: After showcasing the case study of the regional cooperation in the Fukushima nuclear disaster. I want to have one paragraph that introduces the regionalism theory; I also attached some papers regarding regionalism also. 2- Benchmark of Existing Regional Management Centre at the finding of the main paper I wrote about CEMA and ASEAN AHA centers, I need to add a section no more than two pages. explains the main functions of these centers, also if they handled risks on a regional level, what functions they activated