Complex sentence: The U.S. Navy now relies exclusively on VLS for its guided missile destroyers and cruisers, and an advanced Mk 57 VLS system is projected to be used on the new Zumwalt class destroyer.
Split into simpler sentences: The U.S. Navy now relies exclusively on VLS for its guided missile destroyers and cruisers. The advanced Mk 57 VLS system is projected to be used on the new Zumwalt class destroyer.