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Indeed. The Ghost Shark articles says Australia is paying A$1.7 billion for 'dozens' of units, so tens of millions each. I bet they are a lot more capable than an aerial drone costing a few thousand. And much cheaper than a single crewed submarine.

You might think that but your thoughts are not proof.

I refer to the recent events in the Persian gulf area today.

We can all see that those multi million dollar anti missile defense systems might work against an equal number of drones, but thats not how wars are fought today or in the future.

One multi million dollar missile or drone can only combat one other opponent, if it could do more, both straights around the Arabian peninsula would be open and safe today.

Because Congress allocated this money for one but not the other.

drones don't carry missiles or nukes for second strike MAD

A nuclear submarine costs closer 5B so this isnt about MORE nuclear submarines.