The Arleigh Burke class of guided missile destroyers, one of the destroyer classes of the United States Navy, is built around the Aegis combat system and the SPY-1D multi-function phased array radar. The first ship was commissioned on 4 July 1991. After the decommissioning of the last Spruance-class destroyer, USS Cushing, on September 21, 2005, the Arleigh Burke class ships became the U.S. Navy's only active destroyers.
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The Japanese Maritime Self-Defense Force operates four modified Flight I vessels as the Kongo class. Three more will be commissioned by 2010, these will be upgraded to Flight IIA standard.