A Carrier By Any Other Name

The Hyuga is the largest warship built by Japan since World War 2. Since the Japanese constitution forbids their navy from building aircraft carriers, the warship is classified as a "helicopter destroyer."
It's a carrier. Three are planned.

Yeah Japan! While this class may not support V/STOL fighters (yet), the rumor is that adding that capability will be next. And though Japan's neighbors may be hesitant to celebrate the return of true Japanese naval air capabilities, helicopter carriers are very useful in anti-submarine, anti-piracy, and peacekeeping/humanitarian relief efforts.

For example, we just deployed the USS Boxer off the coast of Somalia (with a full complement of Marines). It will take over as the flagship for the anti-piracy fleet there.