Taxation, the wrongful treatmen of his people, also he would not let them expand across the whole U.S. He also did not pass laws they asked for and he put harsh taxes on the colonists.
Just copy it
About The Athens: Athens is the capital of Greece. It was also at the heart of Ancient Greece, a powerful civilization and empire. The city is still dominated by 5th-century BC landmarks, including the Acropolis, a hilltop citadel topped with ancient buildings like the colonnaded Parthenon temple. The Acropolis Museum, along with the National Archaeological Museum, preserves sculptures, vases, jewelry and more from Ancient Greece.
About The Sparta: Sparta was a prominent city-state in ancient Greece. In antiquity, the city-state was known as Lacedaemon, while the name Sparta referred to its main settlement on the banks of the Eurotas River in Laconia, in south-eastern Peloponnese.
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Britain and France
This is considered as one of the most powerful countries during that time. These countries also do not want the United States to be a powerful country. Confederate leaders will have an effect in confederacy break away. However, during the emancipation proclamation. England and France both banned slavery and cannot support the Confederacy which sought to retain slavery. It is quite clear that the Confederacy has little chance on their goal.