I'm surprised to learn that the US doesn't really have a sub launched anti-ship missile anymore. Maybe they just aren't telling us.
"The UGM-84A undersea-launched Harpoon version was retired from U.S. Navy service in 1997, leaving the U.S. submarine force without an anti-ship missile, a capability that isn't planned to be reintroduced until the Block IV Tomahawk is modified with a moving target maritime attack feature in 2021.[20]"
https://en.wikipedia.org/wiki/Harpoon_(missile)
"RGM/UGM-109B Tomahawk Anti Ship Missile (TAS-M) – active radar homing anti-ship missile variant; withdrawn from service in the 1990s."
https://en.wikipedia.org/wiki/Tomahawk_(missile)
Now, don't take my VLS away. They are way too much fun.