Israel's war on Gaza has left more than 700 Palestinians dead - nearly a third of them women and children - and more than 3,000 injured.
But at the organisation's headquarters in Damascus, 100km from the territory, Musa Abu Marzouq, the deputy head of Hamas' political bureau, told Al Jazeera why he believes his organisation is on the verge of victory against Israel.
Al Jazeera: Under what conditions will Hamas agree a ceasefire with Israel?
Abu Marzouq: We have three conditions for any peace initiative coming from any state.
First, the aggression of the Israelis should stop. All of the gates should be opened, including the gate of Rafah between the Gaza Strip and Egypt. Finally, Israel has to withdraw from the Gaza Strip.
We are not saying we will stop firing rockets from the Gaza Strip to Israel - we are only talking about stopping the aggression from the Israelis against the civilian population in the Gaza Strip. When others talk about a ceasefire, they are saying all military operations should stop.
But we are sending a message
: "We will not surrender. We have to fight the Israelis and we will win this battle."
We know we are going to lose a lot of people from our side, but we are going to win, inshallah.
-snip-
http://english.aljazeera.net/news/middleeast/2009/01/200918155333111890.html