Zionism is a political movement that supports the self-determination and homeland for Jewish people in Israel. Zionists advocate for the existence and continuation of Israel, but is used by Israel's settler movement to justify expansion and occupation into internationally recognized Palestinian lands.
Christian Zionists and Muslim Zionists are those Christians and Muslims who support Israel in its objectives in the 'Greater Israel' project.
The 'Greater Israel' project is a frequently contentious, right-wing Zionist project linked to settlement expansion and greater land annexation concepts for a Jewish state. The project may include the Jordan River to the Mediterranean Sea (including the West Bank and Gaza) to biblical, larger borders stretching from the River Nile to the Euphrates.