Day: December 7, 2025

kozak’s resignation letter
Dmitry Kozak submitted a formal resignation letter in September 2025 and a separate, private letter to President Vladimir Putin in which he harshly criticized the war in Ukraine. The contents of the private letter have been described by sources but have not been made publicly available in full.Russian official
Key Details
Resignation Date: Kozak officially resigned from his position as deputy head of the Russian Presidential Administration on September 18, 2025.
Content of the Private Letter: According to reports from the independent Russian media outlet Agentstvo, the personal letter contained a “very harsh” critique of the decision to invade Ukraine. Sources indicate Kozak used “very strong terms” to condemn the attack.
Official Resignation: The official resignation submitted to the Kremlin was a standard, voluntary letter, which was confirmed by Kremlin spokesman Dmitry Peskov.
Opposition to the War: Kozak was reportedly the only high-ranking official within Putin’s inner circle to have openly opposed the war from the beginning. He had previously tried to persuade Putin not to launch the full-scale invasion in February 2022 and later pushed for peace negotiations, which were rejected.
Aftermath: Since his resignation, Kozak has traveled abroad frequently, reportedly for medical treatment, and holds no new government position. His duties have largely been taken over by Sergei Kiriyenko, an official who supports the war.
The contents of the private, critical letter remain confidential, with only descriptions of its tone and general message emerging through investigative journalism sources.
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— Michael Novakhov (@mikenov) Dec 7, 2025