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Castelion raises $1 billion to expand hypersonic weapons production

United States
First seen: Aug 21, 2026, 11:47 AM UTCUpdated: Aug 21, 2026, 11:47 AM UTC

Castelion has raised $1 billion at a $13 billion valuation to scale production of hypersonic weapons. The development concerns expansion of advanced military capabilities.

Expanded hypersonic-weapons production could intensify strategic arms competition.

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