Answer:
Ellensburg, Wenatchee, Yakima, Moses Lake, Walla Walla, Pullman, and the Pasco, Kennewick, Richland, Pendleton, Umatilla, and The Dalles.
There are a few more though, I didn't know how many you would want.
Easy
Roman: because they were the strictest military.
Troy: because the had the best defense
Your answer is Navigation Acts. Hope this helps! <span />