Ehmm Silas I think in this case the compound had been under observation for quite some time. The numbers of men, women and children in the compound were known.

The men would definitely be classified as combatants (armed or not)

The women would be classified as potential combatants depending on what the observation team reported

The children would be classified as non-combatants

THAT SILAS OLD SON IS HOW THE ELITE SOLDIERS WOULD KNOW