Over the weekend, Cambodia’s opposition leader Sam Rainsy landed in Malaysia after what he claimed was a foiled plan to return to Cambodia by land with an initial flight from Paris to Thailand. Irrespective of the details of Sam Rainsy’s travels, his voyage nonetheless put the spotlight on the cross-border impacts of Cambodia’s recent opposition dynamics and how other Southeast Asian states have responded to this development amid the traditional norm of non-interference within the Association of Southeast Asian Nations (ASEAN).