Hamas has been firing rockets into Israel. Granted the rockets are home made and not very powerful, but still, bombarding your neighbor has always been an act of war. The Israelis put up with the bombardment for a few days while asking Hamas to cease and desist. They don't, and the Israelis call in their air force to do a little bombing to send Hamas a message.
Hamas has got to know that firing rockets into Israel is always going to provoke Israeli retaliation. That means that Hamas wants Israel to bomb them. But why? Surely the Gaza strip population is as radicalized as they are ever going to get, they don't need another sirstrike to get them psyched up. Unless Hamas is stuck on stupid (really stuck hard) they know Gaza can't beat Israel in any kind of fight. The Israelis out number them and the Israeli population is highly educated, highly motivated, well organized and well armed. Picking a fight with Israel means certain defeat for Gaza and Hamas.
Can Hamas be stupid enough to think that Israeli airstrikes will get other Arab countries, Eygpt, Saudi, Syria, Lebanon, Iraq, and Jordan to come to their aid? Or the Europeans? Do they crave expressions of international sympathy enough to take casualties? Do they think the incoming Obama administration, already up to its ass in alligators, is going to take their side?
So what is really going on?