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In the early 1940s Halpern worked with Lord Stabolgi to achieve the objectives of Bergson's Committee for a Jewish Army, a campaign which was endorsed enthusiastically by the Jewish Chronicle, but which antagonised the Zionist establishment because of its association with Jabotinsky's New Zionist Organization.
Schechtman emigrated to the United States in the summer of 1941, and soon became part of the 'inner circle' of the New Zionist Organization of America (NZOA).