- Zelenskyy's aides had a train ready for him to escape on in February 2022, a new book says.
- Back then, it wasn't clear if the Ukrainian president would flee the capital, it said.
- Zelenskyy refused to use the train and defiantly stayed to lead Ukraine's defense against Russia.
At the outbreak of Russia's full-scale invasion of Ukraine, President Volodymyr Zelenskyy's security service kept a train idling in Kyiv to enable a quick escape out of the city, according to a new biography.