Certainly not wanting to turn this into a political argument but...
US President Barack Obama, speaking during a visit to Brazil, said the US was taking "limited military action" as part of a "broad coalition".
"We cannot stand idly by when a tyrant tells his people there will be no mercy," he said.
...tt seems strange that we civilised countries pick and choose which tyrants to attack... There is more to this than merely 'protecting' innocents