Hamas entered the operation with an estimated 15,000 active fighters, including men in supportive positions. Although other Israeli sources speak of hundreds of Hamas fighters killed, the IDF believes it has killed over 1,000 (which would underline Israeli claims that there is a far higher proportion of combatants than widely reported among the 1,360 total Gaza fatalities cited by Gazan health sources). The IDF is destroying or significantly harming Hamas's combat units in Beit Hanoun and Shejaiya in the northern Gaza Strip and Khan Younis in the south.

Read more: From tunnels to R-160s, a primer on Hamas and its deadly capabilities | The Times of Israel http://www.timesofisrael.com/from-tunnels-to-r-160s-a-primer-on-hamas-and-its-deadly-capabilities/#ixzz394GHfZGx
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