BERLIN - German Defence Minister Boris Pistorius heads to Washington on Monday to meet U.S. Secretary of Defense Pete Hegseth, to seek clarity on American arms supplies to Ukraine, missile deployment plans and the future of U.S. troop levels in Europe.

Pistorius is likely to receive a warm reception as Europe's biggest economy recently emerged as a key player in NATO's largest military build-up since the Cold War, having for decades lagged behind in defence spending.

As European officials fret over a possible future attack from Russia and brace for a drawdown of U.S. forces, Germany loosened its constitutional debt brake to meet NATO's new core military spending target of 3.5% of national output by 2029.

The move will boost German defence spending to 162 billion euros ($189 billion) in 2029 from 95 billion euros in the draft budget for 2025.

At a meeting with Hegseth at the Pentagon, Pistorius will discuss Berlin's offer to pay for American Patriot air defence systems for Ukraine, a proposal made public by Chancellor Friedrich Merz weeks ago after private discussions failed to elicit a response from Washington.

On Sunday, U.S. President Donald Trump said he will send Patriot missiles to Ukraine. He did not give a number, but he said the United States would be reimbursed for their cost by the European Union.

Germany has already donated three Patriot units to Kyiv, as Ukraine endures some of the heaviest Russian attacks in recent weeks.

However, European allies remain uneasy about the new U.S. administration's unpredictable stance on arms supplies. On Tuesday, Trump said he had approved sending defensive weapons to Ukraine and was considering additional sanctions on Moscow, just days after the Pentagon halted shipments of critical arms to Ukraine.

Pistorius will also seek clarity on whether Washington remains committed to temporarily deploying long-range missiles to Germany from 2026, as agreed under former President Joe Biden.

The deployment would include systems such as Tomahawk cruise missi...