With the former Masters' FLEET, possibly.
Game of Thrones Season 6, Episode 9
He destroyed the Greyjoy FLEET.
Game of Thrones Season 1, Episode 7
The FLEET. It's been burned.
Game of Thrones Season 6, Episode 2
He's sailing with his FLEET to Essos.
Game of Thrones Season 7, Episode 7
For all we know,
it's guarding her FLEET.
Game of Thrones Season 7, Episode 7