> with the ultimate goal of reclaiming land from the river to the sea, per their own charter.
The "from the river to the sea" is the language in the Likud charter, the party ruling Israel and dropping thousands of 2-ton bombs on Gaza right now. The popular chant "from the river to the sea palestine will be free" is a direct response to that. I'm unaware of Hamas' charter using the "from the river to the sea" language, although I'm open for correction here because I have not read the entire charter.