I do love the ripples in the pond effect of the war across the globe. Here’s a ripple I hadn’t considered before, though: The war’s influence on Hawaii. Turns out there were soldiers from there, and sectional arguments as well. With Union-impressed ships and Confederate privateers on the prowl, the war diminished Hawaii’s trade.

Two former residents of Malumalu, Kauai served as officers of the North — William Reynolds as a Union Navy officer and James Marshall, the first manager of Lihue Plantation, as a Union Army brigadier general…

Kauai was not, however, without its southern sympathizers…

Kauai and the American Civil War – Thegardenisland.com: Island History.