It's been 20 years since the Indian Ocean tsunami, which spanned 14 countries and left more than 230,000 dead. National Geographic's new series, "Tsunami: Race Against Time," provides a 360-degree ...

Explore the strange and fascinating geography of the Indian Ocean, from unusual island chains and deep ocean trenches to ...

IRIS Dena, the Iranian warship torpedoed by the United States in the Indian Ocean, has raised questions about who controls the vast expanse of waters and to what extent.

As a country that straddles both the Indian and Pacific oceans, Australia has been an enthusiastic adopter of the Indo-Pacific construct. Australia has the largest Indian Ocean coastline, and so it ...