Eagle25, in Argentina there are not hundreds of pilots without jobs. Most airlines and small charter outfits are hiring pilots every month.
LAN Argentina is not expanding because Argentinean market right now is not as attractive as Peru or Colombia. Domestic travel in Argentina is not very attractive in terms of yields. And yes, unions are strong here. LAN is not uses to deal with strong unions. But thanks to strong Unions airlines can not make you fly 6 days on 1 day off.