Russian President Vladimir Putin became so enraged during a shouting match with Ukrainian President Petro Poroshenko that he revealed he was lying about Russia's role in a military uprising in eastern Ukraine, former French President Francois Hollande wrote in a book published earlier this year about his time in office.
Experts branded the campaign, for which Russia denied responsibility, as a new form of conflict called hybrid warfare.
The strategy involves multidomain fighting, economic pressure, and a distortion of facts on the ground.
But even after Putin got ahold of himself, his narrative continued to unravel, Hollande wrote.
"At seven in the morning after a sleepless night," both sides finally struck a deal that Putin could agree to, Hollande wrote.
But Putin, maintaining he wasn't in control of the separatists, had to run off, Hollande wrote.
Russia still denies any official involvement in the fighting and remains under the sanctions imposed in 2014. »