Roosevelt sent supplies, military equipment, and surplus to help aid the Allies (usually they wouldn't do this until they were part of the war). In doing this, it shows that the US doesn't wait until they get hit, instead they reach out (even though it was only economically, in the case of military, they still waited). Roosevelt also wasn't really the reason the US ended isolationism. It was more of Emperor Hirohito. He allowed his military generals to attack Hawaii for resources and to continue on their expansions of taking over all of the Pacific. Roosevelt only "convinced" (well, all of them were hopping mad already) Congress to declare war on Japan and Germany.
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Checks and balances, kind of like the government here. The Judicial branch regulates the Legislative and Executive branches, the Legislative branch monitors the Executive and Judicial, and the Executive branch monitors the Legislative and Judicial.
Answer:
b) Greece city-states were weakened by war and unable to form a new alliance
Explanation:
Phillip II of Macedon was the king that managed to make the Macedonian Kingdom into a force to be reckoned with. He rebuild and modernized the army, as well as strengthening the economy. The Greek city-states, despite being weakened from the conflicts, didn't really saw the real danger that Macedonia might pose to them, and that backfired on them. Once Phillip managed to take over Paionia and establish nice relations with the Paionians after the invasion, as well as taking over parts of Thrace and Illiria, the sights were set on the Greek city-states. With strong, modernized, well organized army, strengthened even more by the presence of the strong Paionian cavalry, Phillip moved in Greek territory, managing to easily defeat the city-states and take over them, apart from Sparta which was left alone.