Answer:
Today the citizens of the United States have come together once more because of armed conflict and enemy attack.
Step-by-step explanation:
The context of any essay or passage or excerpt is the circumstance that forms the events or text. This context is the main idea of what the passage is talking about.
In her essay "A Quilt of A Country", Anna Quindlen wrote how America is rich in its cultural diversity. Though these differences may at times lead to many animosities and even hatred or a wider gap between the people. But in the face of a common threat, they put aside these differences and unitedly fight against that common enemy. And through this spirit, the citizens of the United States have 'once again' come together to oppose the armed conflict and enemy attack. This factor seems to be the context of the given excerpt.