Divide and Conquer is the biggest Third Age: Total War submod. The latest release was V5 on July 23rd, 2023. DaC V5- A Kingdom Reuinted features all previous content as well as new features such as the Reunited Kingdom, faction overhauls for Dunland, Enedwaith and the Vale of the Anduin, and overhauled UIs.
CA sucks at making new TW games so I saw this and said, Wow I love LOTR why not try this out and guess what CA could never have built a game like this! The best LOTR mod EVER!