Morgan,

I share your interest too, not just British or Commonwealth units either.

I'd forgotten the deployment to Korea of the Indian Field Ambulance (MASH). Years ago I read about a Turkish infantry battalion and since the French were rather committed in Indo-China that - vague now - they had an infantry battalion there too.

Some of the strangest multi-national deployments were just before WW1, such as the Boxer Rebellion and the inter-war, often League of Nations mandated peace operations, such as in Upper Silesia in 1921.