International law required not only discovery and charting but also settlement to perfect a territorial claim.

Not only discovery and charting, but permanent settlement were needed to maintain a territorial claim.

Territorial claims outside that are up for grabs, provided a country can show that its continental shelf extends farther along the seabed.

We may have territorial claims we do not want to relinquish, but we do not need to press them.

The two countries dispute each other's territorial claims to the islands and their surrounding waters, and fought a campaign in 1982 that cost hundreds of lives.