)Throughout the war years, he studied in the Eitz Chaim Yeshiva led by his grandfather, Rabbi Isser Zalman Meltzer, who had also emigrated to Palestine, and attended "shiurim" given by Rabbi Yechezkel Sarna, rosh yeshiva of the Hevron yeshiva in Jerusalem, and Rabbi Yitzchok Zev Soloveitchik, the Brisker Rav.In 1946 Rabbi Kotler was able to rejoin his father in America, where he enrolled in the kollel division of the Lakewood Yeshiva which his father had founded.