The Greek world comprised over 2,000 independent city states spread around the Mediterranean and Black Seas. They fought each other spasmodically and relentlessly. At any time there were several involved in this warfare.
Missouri and Tennessee.
Tennessee and Missouri
Missouri & Tennessee & indeed they border each other not just once but twice
Persia withdrew from the Greek city-stats of Asia Minor and the Islands. The Greek city-states were free to return to their usual fighting each other, and increasingly vicious wars erupted.
Philip built up his military strength in conquering Thrace and other aer areas. He subverted some Greek city-states by bribery. The other Greek city-states were badly weakened by the Peloponnesian War and continuing ongoing wars between each other, and could not mount an effective resistance.
Missouri and Tennessee.
Alaska and Hawaii
No, it pitted the Persian Empire against varying coalitions of about 200 Greek city-states intermittently over 50 years.
The Answer is Maine and Vermont
The two states border each other.
No. Iowa and Illinois are two states that are near each other.
Tennessee and Missouri are examples of states that are each bordered by eight other states.