For more than a decade, Asian countries have been on a submarine spending spree. Some countries are updating obsolete vessels while others are purchasing submarines for the first time. This trend has largely been driven by growing concerns nations have over maintaining a deterrent against an increasingly assertive China broadly, but also rivalries with neighbours and a desire to maintain technological parity with rivals.

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Also read:  Why Subs? To Send Neighbors a Powerful Message – “Stay Outta My Yard”