>>5380260>99 Dragonstone is entirely subjugated because of your ruthlessness and Westerosi men's fear of your elite units.
The Sothoryosi invaders now have a strong home base in Westeros that can't be easily captured without air superiority.
But Dragonstone is a small volcanic island with small population and infertile lands unsuited for cultivation.
Your armies will starve come winter unless you acquire larger fertile lands soon.
You must also prepare for Robert Baratheon's attack because you killed his brother and he'll want revenge when news travels.