When the spokesman of the Izz ad-Din al-Qassam Brigades — Hamas’ military wing — responded to the exposure of the enormous underground tunnel from Gaza that went all the way to a kindergarten in Israel, he told the whole story: “The [Palestinian] factions are capable of digging many more tunnels,” wrote Abu Obeida. “The determination deep in the hearts and minds of resistance fighters is more important than tunnels dug in the mud.”
Hamas has pledged to uphold the cease-fire after Israel launched Operation Pillar of Defense in the Gaza Strip in November 2012. The leaders of the movement's political and military wings fully realize that violating this commitment will result in serious consequences for Hamas. That is why it also enforces the cease-fire on other Gaza-based organizations that can hardly wait for the chance to act against Israel.