Germany; Poland
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The event which started the Gulf War in 1991 was a) the invasion of Kuwait by Iraq. There were the largest amount of coalition forces during this war since World War II, with most of them being from the United States, the United Kingdom, Saudi Arabia and Egypt fighting for Iraq to immediately stop it's invasion and annexation of Kuwait.
The tiny invaders being discussed in the article are plants. They are considered invaders because they came from other countries, but are now threatening the native plants. People brought them in because they wanted to make their gardens and yards beautiful because the plants are very rarely found locally.
Answer:
Between 1821 and 1880, the Santa Fe Trail was primarily a commercial highway connecting Missouri and Santa Fe, New Mexico. The route was pioneered by Missouri trader William Becknell, who left Franklin, Missouri in September 1821
Explanation:
Just think about it
You haven't provided a specific case, but if the question is in general, then the supreme court challenges in based on the legislature that the congress passes. The supreme court provides judicial review of the legislature passed by the congress and deems whether or not the legislature is unconstitutional, in which case it can abolish it.