Retired Lieutenant Colonel Ralph Peters said Trump's weekend Twitter tirade shows he is a "frightened, frightened man."
The Boston College professor, an expert in 19th century America, said President Donald Trump "was onto something" with his Civil War tweets.
"If the Democrats are successful in removing the President from office (which they will never be), it will cause a Civil War like fracture in this Nation from which our Country will never heal.' Pastor Robert Jeffress," Trump posted in one of his dozens of tweets written on Sunday.
A professor in international relations has responded to a series of Trump tweets: "You can not brush it off as 'he just talks that way.'"
"I have visited nations ravaged by civil war.@realDonaldTrump," GOP Rep. Adam Kinzinger tweeted. "I have never imagined such a quote to be repeated by a President."
Wyoming Board of Geographic Names voted to change name of Mount Doane to the First Peoples Mountain.
"I think you had 600,000 people brought to the United States under involuntary servitude, or slavery, and 620,000 died in the Civil War."
An MSNBC panel questioned if President Donald Trump is even capable of relinquishing his executive power without violence should he lose the 2020 election or get impeached.
Lt. Brian Tate, a Columbia Police Department veteran is being probed for pillorying homeless people and slighting races while calling out gang violence as a consequence for the Confederacy's defeat in the Civil War.
Former White House Chief Strategist Stephen K. Bannon took to U.K. radio Sunday in a "call to arms," urging right-wing populists to fight back against so-called "globalist" forces.
Official statistics showed that 140,000 people went missing during and after Spain's civil war.
Black people and women most likely to fear U.S. will see second civil war sometime in the next five years.
Previous agreements have failed to bring permanent peace in the world's youngest country.
Students at Juanita High School voted to keep their "Rebels" mascot after several petitions ensnared the Kirkland, Washington, community into a debate on symbols of racial hate, the Confederacy and U.S. history.
Only once in our history—in 1861—did enough of us distrust the system so much we succumbed to civil war.
A majority of Russians say escalating tensions in Syria with the United States and other allies in the West could spark World War III.
Syrians must return home and prove property ownership by May 11.
Syria celebrates 72 years of independence from France on April 17, 2018.
On Wednesday, Saudi Arabia said it had intercepted another three Houthi ballistic missiles fired at its cities.
Cumberland County Schools passed orders Friday to "fix" large drawings of a Confederate flag and a lynching on the gym wall of an elementary school—prompting a community debate on racism and the Civil War.
"Douglass saw Robert E. Lee and efforts to canonize him after his death as being emblematic of this kind of historical whitewashing," the family wrote to Newsweek.