Complex sentence: Popularly referred to as the Border Campaign, it was also referred to as the "Resistance Campaign" by some republican activists, As found in the IRA statement ending the Campaign in February 1962, presented in J. Bowyer Bell, The Secret Army, 1979.
Split into simpler sentences: Popularly referred to as the Border Campaign, it was also referred to as the "Resistance Campaign" by some activists, as found in the IRA statement ending the Campaign in February 1962. See the statement presented in J. Bowyer Bell, The Secret Army, 1979.