Warsaw is backing Donald Trump’s demand for Nato countries to spend 5 per cent of GDP on defence even if it will take 10 years for the alliance’s laggards to reach the target, says the Polish defence minister.

Poland supports the demand of elected President Donald Trump for NATO countries to increase defense spending to 5% of GDP. However, Warsaw believes this will only happen in 10 years, states Polish Defense Minister Władysław Kosiniak-Kamysz in an interview with the Financial Times.

Ralf Stegner, a member of Germany's Social Democratic Party, called Trump's comments "delusional and truly insane." Poland has backed Trump's demand.

Poland is backing Donald Trump’s call to NATO countries to spend 5 percent of their GDP on defense. Trump’s call for alliance members to more than double the target for defense budgets has prompted a mixed reaction among Europe’s cash-strapped governments.

Nato asks every member country to spend at least 2% of national income - also known as GDP - on defence. It is thought that 23 countries met that target in 2024, compared to only three in 2014. The countries which spend the largest share of GDP on defence are the US and those close to Russia, such as Poland and the Baltic states.

NATO chief Mark Rutte said on Monday the alliance's military capability targets may require members to spend as much as 3.7% of GDP on defence but this figure could be reduced with innovation and joint procurement.

The defense ministers of Europe's five top military spenders said Monday they want to continue increasing their investments in defense but described meeting President-elect Donald Trump's challenge for them to raise spending to 5% of their overall economic output as complicated.