What is the importance of Portland, Oregon in the novel, Whiskey Tango Foxtrot?

Portland is a major city on the Oregon coast, and is the hometown of Leo and his family. Portland is where the family video game company is headquartered, and where Leo lives life sliding through on his family’s wealth. Portland is where Leo arranges a meeting with Mark and Leila in order to bring Mark into the Dear Diary fold. It is while in Portland that Dear Diary must help Leo, Mark, and Leila escape the city when the Committee zeroes in on them. It is from Portland to the Oregonian backcountry that Leo and the others are taken to flee.