Well Israel has defined "combatant" as "male between 14 and 55", and the Western world more or less shrugged and moved on without missing a beat. I'm not optimistic.

That, unfortunately, originates more from the US than Israel.

https://en.wikipedia.org/wiki/Military-age_male

[flagged]

The accepted answer here has a decent source:

https://skeptics.stackexchange.com/questions/56556/does-the-...

> fight in civilian clothing

(Fake) physician, heal thyself.

https://www.pbs.org/newshour/world/israeli-undercover-forces...

> Article 4 applies to soldiers (that e.g. fight in uniform)

Israel openly forbids the importation of uniforms.

https://www.jpost.com/arab-israeli-conflict/israel-seizes-la...