https://archive.is/kFmFP
https://www.jpost.com/judaism/article-821680
>In the last generation, the term "Greater Israel" has come to the forefront. It is sometimes used in political or religious discussions about the ideal or future borders of Israel, often in the context of messianic or Zionist aspirations. Some interpret it as a call for the re-establishment of Israel’s biblical borders. However, the concept varies in meaning, ranging from symbolic or spiritual interpretations to literal geographical claims.
>This term refers to the concept of the biblical boundaries of the Land of Israel as promised to the Jewish people in various parts of the Torah. It is often associated with the land described in the Covenant with Avraham (Brit Bein HaBetarim), which stretches from the "River of Egypt" (interpreted by some as the Nile or a smaller river in Sinai) to the Perat River. This expansive region includes parts of modern-day Israel, the West Bank, Gaza, Lebanon, Syria, Jordan, and Iraq.
>When Hashem promised Avraham Avinu the Land of Israel at the Brit Bein HaBetarim, the pasuk says (בראשית טז): "On that day, Hashem made a covenant with Avram, saying: To your descendants, I have given this land—from the river of Egypt to the great river, the Euphrates."
>At the blessing at the end of Parshat Ekev, Hashem tells us that we are granted every land we will conquer within the borders mentioned. In the north, the Torah states: "Every place where the sole of your foot will tread shall be yours—from the wilderness and the Lebanon, from the river—the Euphrates River—until the western sea shall be your boundary." This promise from the Creator clearly places the land of Lebanon within the Promised Land of Israel, or what some refer to as "the Complete Land of Israel", or “The greater Israel”.