There's a war going on you know...

I'm dumbfounded as to why their doing it as well, can anyone figure out a motive?

The principles of the Hamas are stated in their Covenant or Charter. Following are highlights.

  "Israel will exist and will continue to exist  until Islam will obliterate it, just as it obliterated others before it." (The  Martyr, Imam Hassan al-Banna, of blessed  memory).
 "The Islamic Resistance Movement believes that  the land of Palestine is an Islamic Waqf consecrated for future Muslim generations until Judgement Day. It, or any part  of it, should not be squandered: it, or any part of it, should not be given up. "
 "There is no solution for the Palestinian  question except through Jihad. Initiatives, proposals and international conferences are all a waste of time and vain  endeavors."

YouTube - Hamas In Their Own Voices