[quote=@Sini]
<Snipped quote by Sep>

I'm good with everything except for the troop numbers. A little under 2 million really is too much for a planet of 4 million. I'd say that number is more likely to include those reservists you mention.
[/quote]

Well I'm going with the fact Gargon probably has a reasonable sized population. Mandalore Sector, not just Mandalore.

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Edited that all mandalorian ADULTS are reservists, as while Kids are trained I doubt they'd be used (Note that Mandalorians are considered adults at twelve)

That includes 2 inhabitable planets and one inhabitable moon.