Abba Ahimeir was a spiritual leader of the Revisionist Movement, the Beitar Youth Movement and Tzohar. He was a journalist, an historian, a philosopher and an Israeli writer.
As a young man, he was attracted to Zionist socialism and became close to its leaders, Aharon David Gordon and Beryl Katznelson. He admired them greatly. In 1920, he moved to Vienna, where he met the Zionist leader Ze’ev Jabotinsky for the first time. In 1928 he joined the Revisionist Movement together with his friends Uri Tzvi Greenberg and Yehoshua Heschel Yeivin. The three men founded the Revisionist Labor Bloc at a conference in Nahalat Yehuda. He began to publish articles about current events in the newspaper, Doar Hayom. He was active among the movement’s young people and lectured Beitar leaders at schools.
In 1930, he founded the organization, Brit HaBirionim (The Union of Zionist Rebels), which was the first to protest and demonstrate against the British Mandate, which they called a foreign regime.
In June, 1933, after Arlozorov’s murder, Ahimeier was arrested for a lengthy period. because he was suspected of involvement in the murder. He was brought to trial for the murder, along with Avraham Stavsky and Tzvi Rosenblatt. On May 29, 1934, after hearing the testimony of the witnesses, he was cleared of the charge. However, he was then arrested again and brought to trial for founding Brit HaBirionim. Other members of the organization were also brought to trial
From left to right: Yehoshua Heschel Yeivin, Uri Tzvi Greenberg and Abba Ahimeir, June 25, 1927
The maximalist bloc in the Land of Israel was a group that opposed the moderate stance of the Revisionist Movement. They wanted to organize a military force that would rebel against the British occupation, would conquer the land and would form a sovereign Jewish state in the Land of Israel.