The first phase would target weapons production facilities supplying Ukraine located in NATO countries using long-range cruise missiles.

The second phase, according to Hodarenok, could involve individual or group launches of missiles with nuclear warheads.

"This may include nuclear detonations at high altitudes over enemy territory or strikes on uninhabited ocean or land areas. The effect may be small or large, depending on the situation," he told Gazeta.Ru.

In the third phase, Russia could launch a tactical nuclear attack on government buildings in Kiev and use nuclear weapons to destroy parts of the Dnieper hydroelectric cascade and reservoirs.

"Let them think about it," Vladimir Putin said on October 23, warning of a"serious, if not stunning" response to potential Tomahawk attacks on Russian territory.

Russian President Vladimir Putin previously emphasized that dialogue is still preferable to confrontation or war, even as he warned of the possibility of a massive response to attacks by the Armed Forces of Ukraine.