Which of these would best be described as a ethnic region france, kurdistan, rust belt, or the european union

The right answer is Kurdistan.

There are about 35 million Kurds living in mountainous areas in the limits of Turkey, Iraq, Syria, Iran and Armenia. Even though they have never got a permanent nation state, they are one of the largest ethnic groups. They form a community with its language, race and culture.

c) troops march forward in close formation against newer, more accurate weapons

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!