specific fic search: Sherlock/John, soldier au

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I'm looking for a Sherlock/John AU I read a while ago over on AO3-Sherlock and John were both in a war zone-it might have been set in world war II-when they met. Sherlock-I think he was a soldier-got left behind/left for dead, and John found him and saved him. I know that's a git vague-sorry.
Also, any stories where Sherlock is a soldier of any kind and/or meets John in Afghanistan or some other war zone would be wonderful.
Pretty please?
Thanks : )