So let me tell you what you know so far.....Nothing.
Our Navy will never be all in one place at any time.
The YJ-18 is the improved Chinese version of the Soviet SM-54E. It flies at subsonic speed to hide it`s signature, then when on terminal approach does a series of turns and climbs up to point at the ship and fires a Mach 3 solid kinetic round at the ship. It will bounce off a Battleship but go through a Burke. Do the math. It has a Soviet range of about 300 +/- 50 miles range and a Chinese 400 to 500 mile range. It`s ten years old and the only way it get`s through the defense is by swarming. When you do that you give away your position and the US is able to get you back. It will hurt or mission kill a Tyco. Carrier or Nimitz Carrier, but you need more than one hit for it do much to a Ford Class.
It is a poor choice of rocket to arm with a Nuke. It has never been used. It`s no match for the Tomahawk response they will get. T-Hawk has been used and is undefeated against Iraqi and other countries Russian and Chinese defenses.
So endith the lesson.