The map above shows the political boundaries of the south east asia. As shown in the map Indonesia is one of the biggest countries in the south east asia compared to the others. It has a big population. The country with the smallest region is Laos becaus it doesnt have a sea and has little access to them.
The picture shown above are the members of the ASEAN. ASEAN is an organization with 9 members and these countries are all from south east asia which makes the the Association of South East Asia Nations. The map above shows the current members of the organization.