One of world's most advanced submarines arrives in Subic

The Los Angeles-class fast attack submarine USS Chicago (SSN 721) arrived at Subic Bay on Tuesday as part of its deployment in the Western Pacific.

The vist of the Chicago, carrying 170 sailors, to the Philippines is among its many missions to show its latest capabilities.

Chicago is the first fast-attack submarine to be built with a vertical launch system, allows the United States Navy to maintain a constant forward presence.

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