Kach was a radical Orthodox Jewish, religious Zionist political party in Israel, existing from 1971 to 1994. Founded by Rabbi Meir Kahane in 1971, based on his Jewish-Orthodox-nationalist ideology, the party earned a single seat in the Knesset in the 1984 election, after several electoral failures. However, it was barred from participating in the next election in 1988 under the revised Knesset Elections Law banning parties that incited racism. After Kahane's assassination in 1990, the party split, with Kahane Chai breaking away from the main Kach faction.

Religious Zionism is an ideology that views Zionism as a fundamental component of Orthodox Judaism. Its adherents are also referred to as Dati Leumi, and in Israel, they are most commonly known by the plural form of the first part of that term: Datiim. The community is sometimes called 'Knitted kippah', the typical head covering worn by male adherents to Religious Zionism.