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In page People's Liberation Army Navy:

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Between 2001 and 2006 there was a rapid building and acquisition program,[1] a trend which continued. There were more than a dozen new classes of ships built in those five years,[1] totaling some 60 brand new ships (including landing ships and auxiliaries).[1] Simultaneously, dozens of other ships have been either phased out of service or refitted with new equipment.[citation needed]