London: Vladimir Putin keeps finding new ways to test Donald Trump and the major European leaders when they talk tough about the war in Ukraine.

That is because the Russian president pays no price for every escalation – and the latest provocation may be no different .

The American president is proving every day that he does not know how to respond to Putin. The European leaders are proving that they know what to say, but not what to do. So the provocations keep coming.

It is an extraordinary moment when Russian forces can fly drones into Polish airspace, mobilising NATO fighter jets and air defences in an emergency not seen since the Cold War, without any penalty.

Polish Prime Minister Donald Tusk makes a direct comparison to the years when Poland last suffered from a bellicose ne

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