Submarines are designed to hide – so what happens when one goes missing?

By James Goldrick, Adjunct Professor in Naval and Maritime Strategy and Policy, Australian National University

In waters north of Bali, a frantic search is underway for the Indonesian submarine KRI Nanggala, missing with 53 crew since the boat failed to make a routine signal report on Wednesday morning.

How to hunt a submarine

There are two key challenges when a submarine goes missing. The first is finding it. A submarine is inherently covert. When the Nanggala dived as part of a routine exercise, it is unlikely the boat was…

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