Maritime Domain Action in the Indo-Pacific Needs One Shared All-Source Picture

Talk of information advantage and allied interoperability comes down to one practical question: Can partners act together on a trusted picture of what is moving at sea, and why?

Most do not, at least not yet. Each navy, coast guard, and agency holds its own slice, built from its own sensors and its own rules. The gaps between those slices are exactly where gray-zone shipping operates.

No Single Navy Sees the Whole Dark Fleet Route The dark fleet does not respect command boundaries. Russia reflagged 84 dark fleet tankers to its own registry in Q3 2026, more than four times the Q2 figure, according to Windward’s Q3 2026 Maritime Risk Report. Russia now flags 223 Russian-flagged tankers, 18% of the total. One in three Aframaxes worldwide now sits in the dark fleet.

Those vessels cross theaters as a matter of routine. Iranian crude loaded in the Gulf is commonly moved ship to ship in waters off Malaysia’s Johor coast, roughly halfway between Iran and China, which buys about 90% of Iranian oil.

This story was originally published by Hellenic Shipping News. Read the full story at Hellenic Shipping News →