Its objectives were to promote British traditions and culture at the expense of others in the state, especially to suppress any social or political influence from German Australian citizens and residents, whether born in Australia or not.
It was supported by several community leaders, including the Governor of South Australia, Sir Henry Galway.
The League referred as "alien enemies" not only immigrants from Germany, regardless of whether they had sworn allegiance and been naturalised as British subjects or Australian citizens, but also to their Australian-born descendants.
[2] The league held meetings and recruitment drives in Semaphore Town Hall during the course of the war.
One contributor to a newspaper noted that the entire British Royal Family would fail the parentage test to join the All-British League due to intermarrying with other European royalty, and that there were already Australians of German parentage killed or injured fighting for the British side.