Nation States puzzle

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Across
  1. 2. area under control of a country state or area
  2. 3. a written agreement between sovereign states or international organizations
  3. 5. a wall that separates countries, states, and Areas
  4. 6. a system of money printed by government
  5. 7. maintains a group of people having the same culture,
Down
  1. 1. the authority of a state to rule itself or another state
  2. 4. group of people that has control over country, state or town