The Mitzvah Of Making Aliyah (Living In Israel) Today

 https://outorah.org/p/27212/

Rav Moshe Feinstein zt”l (Igros Moshe E.H. 102) discusses whether there is a mitzvah to make aliyah and why many rabbanim have lived in the Diaspora. He writes that even according to the opinion of the Ramban, that there exists a biblical obligation, the nature of this obligation is different than many other mitzvos. He feels that this mitzvah is “kiyumis” not “chiyuvis”.

 Rav Yosef Dov Soloveitchik zt”l agreed with the premise of Rav Moshe Feinstein. He also felt that the mitzvah to live in Israel is a mitzvah “kiyumis” and not “chiyuvis” (oral ruling cited by Rav Herschel Schachter shlit”a sefer Peninei Harav).