Complex sentence: Between 1934-1936 he was sent for the second time by Ein Harod's leadership to the Hechalutz center in Warsaw, this time he also acted as a delegate to the 19th World Zionist Congress at Lucerne, Switzerland.
Split into simpler sentences: Between 1934-1936 he was sent for the second time by Ein Harod's leadership to the Hechalutz center in Warsaw. At that time he was also a delegate to the 19th World Zionist Congress at Lucerne, Switzerland.