The two leaders held a summit that the U.S. warned could lead to a deal to supply ammunition for Moscow’s war in Ukraine.
Test launches ensure America’s land-based nuclear missiles are still viable after more than 50 years.
The tests came three days after U.S., South Korea and Japanese leaders met and agreed to increase cooperation on their ballistic missile defenses.
The move would expand competition for national security space launch, a field dominated by SpaceX and United Launch Alliance.
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