[3] He is the younger brother of Lieutenant General Michael T. Flynn, Donald Trump's first National Security Advisor.

[4] Flynn received his commission via the Army Reserve Officers' Training Corps at the University of Rhode Island in 1985.

[6] On 25 January 2021, the Department of Defense named Flynn as the next commander of the United States Army Pacific at Fort Shafter in Honolulu.

However, Lieutenant General Walter E. Piatt, Director of the Army Staff, said he could not recommend the request be approved.

[11] In early December 2021, Colonel Earl G. Matthews released a memo that accused Flynn of making willful distortions of the events of 6 January, describing Flynn and Piatt as "absolute and unmitigated liars" and of giving “perjured testimony before Congress”.

[12] Charles Flynn's role drew scrutiny in light of his brother Michael's recent calls for martial law and a redo election overseen by the military.