So much talk about a guide I wrote up years ago, makes me feel special.
Ya you can survive with 0 military for a very long time using warehouse protection. For the average raider who sees 0 military and attacks blindly, if they keep pulling 0 resources from you sooner or later they are going to just ignore you. But I'd leave 1 fire ship in every port and 1 spearman in every town. This doesn't leave you at 0 military and it causes the pillager to waste more time and resources dealing with them to get that 0 resources.
(added town setup)
My own build as a pure builder is:
wine - 7
stone - 3
crystal - 1
sulfur - 1
The extra wine towns benefits in multiple ways.
Extra towns on wine island = making use of 1 islands mine/mill for donations
Wine towns don't need wine shipped to them, potential freeing up ships to do other things
Defensively, you can wait out someone trying to blockade you because you don't need to supply those towns with wine.
Use ambrosia to convert extra wine into other resources as needed
When I was more active a lot of the wine was converted to crystal for experiments, but now I'm more in gold stockpile mode.

Ya you can survive with 0 military for a very long time using warehouse protection. For the average raider who sees 0 military and attacks blindly, if they keep pulling 0 resources from you sooner or later they are going to just ignore you. But I'd leave 1 fire ship in every port and 1 spearman in every town. This doesn't leave you at 0 military and it causes the pillager to waste more time and resources dealing with them to get that 0 resources.
(added town setup)
My own build as a pure builder is:
wine - 7
stone - 3
crystal - 1
sulfur - 1
The extra wine towns benefits in multiple ways.
Extra towns on wine island = making use of 1 islands mine/mill for donations
Wine towns don't need wine shipped to them, potential freeing up ships to do other things
Defensively, you can wait out someone trying to blockade you because you don't need to supply those towns with wine.
Use ambrosia to convert extra wine into other resources as needed
When I was more active a lot of the wine was converted to crystal for experiments, but now I'm more in gold stockpile mode.


My buildings guide -- My 0 Military Defense Guide
* @Lissala slaps ImperialUser around a bit with a large trout