Complex sentence: It was, however, a distinct body in its own right, separate from the home force, and the domestic yeomanry provided only some 18% of the first contingent of just over 10,000 men.
Split into simpler sentences: It was, however, a distinct body in its own right, separate from the home force. The domestic yeomanry provided only some 18% of the first contingent of just over 10,000 men.