OK-I did a little research. Seems that the dog tag is the determining factor if the soldier is acting within international laws and not the uniform.....

"Those who are given an opportunity to observe or talk with prisoners of war should ask to see the identification documents. Not only is the card evidence of the person’s status under the laws of war, its absence is evidence that the captor is not in full compliance with the same laws. The presence of the identity disks and the identification card is a ready and visible means of determining some minimal level of compliance with the laws of war concerning prisoners. - See more at: http://www.crimesofwar.org/a-z-guide/511/#sthash.bhQMw5d9.dpuf"
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