You're making a rather large assumption that simply launching strikes from a distance, and chopping off the head of the snake is a solution to this problem. When all it succeeds in doing is hardening sympathisers of the regime that yet live at best, and creating new sympathisers at worst as innocent people's lives are destroyed.
I'm not so arrogant to pretend that I have all the answers or all the solutions. But at the very least consult with your allies. Come up with a plan. THINK about the consequences of what you're planning on doing, before you do it. Just look at the beginning of this fucking thread. The regime was already splintering. All that has been achieved with this strike, is strengthening the resolve of the tyranny that was teetering towards collapse of its own fucking accord. And for what?