system
Given the following post, respond as if you're commenting on Reddit:
human
[GoT] Where did the Iron Islanders get the resources for an Armada?

[Not really spoilers since this came up last season] 

How was there possibly enough wood on the Iron Islands to build an armada of a thousand ships? It's a rocky island, and the history of civilization there goes back thousand of years. Shouldn't mast sized trees be hard to come by?
gpt
Not sure about the show, but in the books the Ironborn pretty much exclusively use longships, which are much smaller than the type of sailing vessel you're probably imagining. Beyond that, they had recently been occupying chunks of the North, where there's definitely no shortage of trees.