This is how Hamas negotiates a cessation of hostilities:

"The Israelis have two choices: accept our demands, or prepare for a war of attrition with us, Hamas senior official Osama Hamdan said, according to Israel Radio."

Read more: Hamas threatens war of attrition if terms not met | The Times of Israel http://www.timesofisrael.com/hamas-threatens-war-of-attrition-if-terms-not-met/#ixzz3AZrcXTYJ