Complex sentence: For the remainder of the conflict, Aiken and his unit remained at large, carrying out some guerrilla attacks on Free State forces; however, Aiken was never enthusiastic about the internecine struggle.
Split into simpler sentences: For the remainder of the conflict, Aiken and his unit remained at large, carrying out some guerrilla attacks on Free State forces. However Aiken was never enthusiastic about the internecine struggle.