In a shiur by Rabbi Binyanim Tabory exploring the teshvuot of Rabbi Menachem Kasher (here), I came across a teshuva that resonates very strongly with me at the moment.
In a question (Divrei Menachem 4:3 – here) about placing a mezuzah on the gates of courtyards, he has a general discussion about the role of mezuzah as protection. He notes that the Gemara in Menachot 44a says that if one rents a house in the Diaspora, one is exempt from putting up a mezuzah for thirty days. There are varying opinions as to whether this means that one is always exempt from putting up a mezuzah for the first thirty days even if one intends to be there long term, or if the exemption only applies to people who are planning to live in a given place for less than thirty days. Either way, the Gemara then says that one who rents in Israel must put up a mezuzah immediately because of yishuv Eretz Yisrael. Continue reading On Mezuzot, the Iron Dome, and Yishuv Eretz Yisrael