The correct answer is - Republicans and Democrats.
When we see a map of the United States with the colors red and blue, than it usually means division of the country's states by political orientation. The red color refers to the Republicans, while the blue color refers to the Democrats.
In general, the Republicans enjoy more support in the states of the southern half of the country, while the Democrats enjoy more support in the northern half of the country, with the occasional exception of course.
Appeasement, Foreign policy of pacifying an aggrieved country through negotiation in order to prevent war. The prime example is Britain's policy toward Fascist Italy and Nazi Germany in the 1930s.