Rounds were fired on Friday across Interstate 5 as part of a test run for Saturday’s event at Camp Pendleton in Southern California.

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Though Pyongyang has largely pulled its soldiers off the front lines in Ukraine, it is expanding the types of ammunition it supplies to Russia.

Ukraine could receive a newly developed land-based launcher to strike Moscow and beyond.

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Mining materials to make cement, gravel and a host of other common products require an explosive that is becoming more expensive and limited in supply.