Complex sentence: Today it is the military specialist library of the Army Library Service, specialising in the provision of information on current military topics, political subjects and international relations in support of operations, intelligence, training and education in the Armed Forces.
Split into simpler sentences: Today it is the military specialist library of the Army Library Service. It specialises in the provision of information on current military topics, political subjects and international relations in support of operations, intelligence, training and education in the Armed Forces.