I'd say to protect the USSR's western border from another invasion.
Supply and demand is the amount of a product/service available and the buyers desire for said product/service.
Bear flag Revolt
Explanation:
Known as the Bear Flag Revolt, a reference to the short-lived republic’s flag, this event was something between an American invasion and a miniature war of independence. Though the fighting was limited and the country it established lasted less than a month, the Bear Flag Revolt led directly to the American acquisition of what is now its most populous state.
Answer: Electors chosen by the states
Explanation:
