Russia is preparing a massive attack on Ukraine, as evidenced by updated data from Ukrainian intelligence. 

Ukrainian President Volodymyr Zelensky announced this, Operativ Media reports.

According to the head of state, the Ukrainian military, including the Air Force, is ready to respond to the threat using available defense capabilities.

"Please protect yourselves! Please respond to missile threat alerts," Zelensky said.

He noted that the effectiveness of protecting Ukraine's skies largely depends on every leader and every state in the world that possesses the necessary defense systems and can transfer them.

Zelensky said that transferring these systems requires political will, particularly from the US, European countries, and other partners.