Complex sentence: Most noteworthy was her official declaration of the end of the war; she maintained this peace by a reduction in the size and power of the military, an end to the national draft, and the demobilization of the military.
Split into simpler sentences: Most noteworthy was her official declaration of the end of the war. She maintained this peace by a reduction in the size and power of the military, an end to the national draft, and the demobilization of the military.