NAVY?? (Fearless Blue)

1st question do attack boats actually do anything or are they only for defense except on the offensive list or are they like jeeps and armored vehicles just for the sea?

2nd question do navies still take like half a year just to travel 2 feet on the map?

I can see no viable use for attack boats anymore.

Navies travel anywhere in the world, in one month; be that 1 or 50,000 kilometres.

i guess thats it sucks because if u want to move the fleet to your neighbor u would have to wait a month but can u still attack with attack boats or are they actually disabled?