In George Washington's words "A pasionate attachment of one nation for another produces a variety of evils".
With this statement, as well as a many others in his famous Farewell Address, what Washington was mainly trying to warn the American people about is that becoming fanatical of any political party or overly-obsessive about geographical divisions would always set-up injustice. The privilege of any Nation always comes at the expense of others when sympathy grows into an illusion of "an imaginary common interest". Also of much importance, alliances must be chosen wisely as to not end up betraying the interests of our own Nation in order to defend these alliances. When they're formed without good justification, we end up wrongly following blind and passionate attachment instead of reason.
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The answer is: During the Duncan vs Louisiana case, the Supreme Court answered whether the Sixth Amendment guarantee of a jury trial applies to the states or not.
The Duncan Vs Louisiana was a very significant ruling by the Supreme Court and it incorporated the 6th Amendement right to a jury trial in all States.
The case took place in 1968 during the time of huge racial tensions. Gary Duncan was the name of a 19 year old teenage African-American boy who was charged with battery in the State of Louisiana without a jury trial.
With an appeal, the Supreme Court ruled in favor of Duncan 7-2 and ensuring that every person has the right to a jury trial.
Greece, Athens, and Sparta were involved because athens grew more powerful and tensions rose which escalated to almost 3 decades of war. Sparta got stronger and more victorious while the continuous fighting left the Athens bankrupted and demoralized.