Brind.
  1. The article discusses Yuma County, which is located within the state of Arizona.

A hypersonic test trial involving the US Army took place at Arizona's Yuma Proving Ground, with LLNL involved.

1 report, 1 independent Updated Aug 9
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A hypersonic test trial involving the US Army took place at Arizona's Yuma Proving Ground, with LLNL involved.

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