Europe should welcome rather than rebuff U.S. President Donald Trump's call for other NATO members to ramp up their military spending, Polish Prime Minister Donald Tusk said on Wednesday, stressing the importance of security to the continent.

Andrzej Duda is the president of Poland, an increasingly important economic and geopolitical force in Europe. On Tuesday, Jan. 21, Duda joins Washington Post columnist David Ignatius to discuss the war in Ukraine,

The EU's top diplomat and Poland's prime minister said Wednesday that the bloc must heed US President Donald Trump's demand to spend much more on defence -- faced with the "existential threat" posed by Russia.

As Donald Trump begins his second term in office, he has called for NATO members to raise their defence budgets to five per cent of GDP.