Complex sentence: Rabbi Yisroel Belsky considers himself to be an important "posek" in the United States, residing in Brooklyn, New York.He Serves as one of the Rosh Yeshivas in Yeshiva Torah Vodaas, although he gives a shiur to the younger students.
Split into simpler sentences: Rabbi Yisroel Belsky considers himself to be an important "posek" in the United States, residing in Brooklyn, New York. He serves as one of the rosh yeshivas in Yeshiva Torah Vodaas, although he gives a shiur to the younger students.