1 Dollar - Elizabeth II Battle of the Coral Sea

The Battle of the Coral Sea, fought in May 1942, was the first naval engagement in history where the opposing surface fleets never came within sight of each other — all damage was dealt entirely by carrier-based aircraft. It was tactically inconclusive but strategically decisive, halting the Japanese advance toward Port Moresby and, by extension, the Australian mainland.

Niue issues commemoratives under a licensing arrangement that allows it to produce legal tender coins for international collectors while its actual circulating currency remains the New Zealand dollar.