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What documentation is required to prove completion of Thai national service for UK Army recruitment?

British Army application Thai national service dual citizenship service liability letter military service exemption documentation for immigration

Aug 21, 2025

3 days ago

Ja *********

ORIGINAL POSTER

Hello Everyone,

I am 20years old and currently a dual citizen Thai and British and was wondering about this Service Liabilty Letter on my Uk army application. It says about proof of not being called back for national service. Although I’ve just recently finished my 1 year national service with documents saying I’ve finished my duty.

The British army still won’t accept it.

Any help would be appreciated, Thank you.

🙇‍♂️

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TLDR : Answer Summary

The original poster, a dual citizen of Thailand and Britain, is seeking advice on obtaining a Service Liability Letter for their British Army application, which requires proof of exemption from Thai national service. Key suggestions from comments include obtaining an official letter from the Thai military confirming the completion of national service, ensuring proper translation and certification, and exploring existing laws regarding military service obligations for dual citizens.

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Rich *****

Send me the letter you received and I’ll make some enquiries for you as to what exactly is required.

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3 days ago

Ian *********

I may be wrong, but I think there is a rule that prevents you serving with the Thai military if you have served with the military of another country. Basically removing any call-up/reserve liability from the point you sign up and take your Oath of Allegiance with the British Army. You may be able to show that legislation to the recruiters (if it exists). Worth exploring

3 days ago

Michael ********

Check Thai citizenship group maybe someone there with previous experience and they also have page about NS obligations/requirements

3 days ago

Peter *******

British Army will not accept you until you have a written guarantee that there is no reservist call up attached to your Thai National service.

3 days ago

Adam ********

I believe you will need a letter from the Thai military stating that you have finished your Thai military service or are not required and as such you will not be called upon in the future. This will then need to be translated with the appropriate stamp.

3 days ago

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Adam ********

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