RUSSIANS have revealed Vladimir Putin's red line for a full-scale war with the West just days after invading Nato's airspace.

Kremlin comrade Dmitry Medvedev said that any attempt by the West to shoot down Russian drones in Ukraine would lead to a full-blown war between Nato and Russia .

Poland called for a no-fly zone over parts of Ukraine after Russian drones invaded Polish and Romanian airspace - both part of Nato.

Radosław Sikorski, the country's Foreign Minister, demanded that allied forces start shooting down Russian drones and missiles over Ukraine .

The plan is strongly supported by Ukraine.

However, Russia threatened to launch a full-blown war against the West if its drones were attacked.

Medvedev, Deputy Chairman of the Russian Security Council, warned "

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