A vigorous communal leader, Berlin openly declared himself on all the major questions of his time. He was an active supporter of the Ḥibbat Zion ("Lovers of Zion") movement from its very inception and urged observant Jews to swell its ranks and promote Jewish settlement in Erets Israel. Rejecting proposals for the establishment of separatist Orthodox communities (see Samson Raphael Hirsch; Neo-Orthodoxy), he insisted that every attempt be made to win over non-Orthodox and non-religious sectorss of the Jewish people. His last years were clouded by unrelenting czarist interference in the Volozhin yeshivah's educational program. The Russian authorities called for a limit to the number of hours devoted to Torah study and for the introduction of a secular curriculum. Berlin would not agree to these excessive demands and the most prestigious talmudic academy in Eastern Europe was therefore closed by governmental decree on January 22, 1892. Having been expelled from Volozhin, the Netsiv planned to settle in Erets Israel and began attending to his affairs in Warsaw; his death there, some 18 months later, put an end to his dream.
The Netsiv's younger son,
Meir Berlin (Bar-Ilan; 1880-1949), became one of the outstanding personalities in religious Zionism and a leader of the Mizrachi movement. He lived for a time in Berlin and then, for a decade (1915-26), in New York, where he organized the American Mizrachi and founded the Teachers' Institute that was to be incorporated in Yeshiva University. From 1926, Meir Berlin was active and prominent in Jerusalem. He founded and edited the Mizrachi newspaper Ha-Tsofeh (1937- ), was an architect of the Talmudic Encyclopedia (1947- ), and also published several works, notably a volume of memoirs in Yiddish (1933; translated into Hebrew as Mi-Volozhin ad Yerushalayim, 1939-40) and a biography of his father (Rabban shel Yisra'el, 1943). Israel's modern Orthodox Bar-Ilan University, established in 1955, honors his memory.