Inside is dark, but their mission is clear.<br/> <br />Israel says it's committed to removing hidden tunnels used by Hamas fighters in Gaza, and destroying the militants' missile stockpiles.<br/> <br />U.S. Secretary of State John Kerry, meanwhile, is in the region, pressing for a ceasefire... meeting separately with Israeli Prime Minister Benjamin Netanyahu and Palestinian President Mahmoud Abbas.<br/> <br />(SOUNDBITE) (English) US SECRETARY OF STATE JOHN KERRY SAYING:<br/> <br />"We will continue to work with President Abbas and others in the region in order to achieve it, and I can tell you that we have in the last 24 hours, made some progress in moving towards that goal."<br/> <br />Palestinian negotiator Saeb Erekat says their meeting was focused on a ceasefire AND lifting the blockade of Gaza:<br/> <br />(SOUNDBITE) (Arabic) PALESTINIAN NEGOTIATOR SAEB EREKAT, SAYING:<br/> <br />"This is not a war on the Gaza Strip or on Hamas. This is a war on the Palestinian people. This is not self-defence. This is a defence o