In 1919 the first nationwide women's party in the New Yishuv (the Union of Hebrew Women for Equal Rights in Eretz Israel) was created, and Welt-Straus, who had immigrated there that year, was appointed its leader, which she continued as until her death.[1][2][4][5] In July 1920 she traveled to London to participate in the assembly at which the Women's International Zionist Organization (WIZO) was established, and later that year she represented the Union of Hebrew Women for Equal Rights in Eretz Israel at the International Woman Suffrage Alliance congress in Geneva. She represented the International Woman Suffrage Alliance on international committees, participated in all its Congresses, and was often included in delegations to the prime ministers of the countries which held the congresses.[1]