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No matter where you are, the insurance you must buy is critical illness insurance and accidental injury insurance. In view of the fact that the project is working in an unsafe country, accidental injury and accidental injury medical care are big items that need to be purchased (I mean insurance coverage). Because I don't know the income and specific country of the subject, I can't answer in depth.
But in general, risks and benefits are positively related, so it is unknown whether insurance can be obtained in China and whether claims can be made after an accident, especially in unsafe countries. Finally, if you can buy insurance locally, whether it is compulsory or not, you must buy it. Don't save this small premium, which will lead to huge losses in the future.