Brian O'Leary

@brianoleary

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Colonel-US Marine Corps (Ret) | Penn State University | US Army War College | IG-@brian_oleary34 l X-@brianoleary34

62K+ subscribers

Danger Close with Brian O'Leary

By Brian O'Leary

A retired Marine colonel offers insights on current events, American culture, national security, foreign affairs and more.

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