Inflatable "Weapons"

While hardly original, there is a certain genius to this idea:

The Russian military has come up with an inventive way to deceive the enemy and save money at the same time: inflatable weapons.

They look just like real ones: they are easy to transport and quick to deploy.

You name it, the Russian army is blowing it up: from pretend tanks to entire radar stations.

I think we should to the same with our military capacity. Forget replacing Trident with anything meaningful - instead let's go with a fleet of ersatz nuclear submarines. I mean, what could possibly go wrong with that plan?