No fucking problem shooting invaders.  If these assholes insist on bringing kids to the firefight, using their own children as human shields... sometimes the only way is to deny them the pity card they are playing at. I would feel bad about the kids, sure.  But its on their parents/keepers.  They think the kids will protect them as they make aggressive moves.  Shitting out a kid is not a get-out-of-jail free card.  Need to beat their asses down, maybe some tear gas.  And then detain every minor we can in government facilities to find them parents who might actually give a shit about their welfare.