NATO Secretary General Mark Rutte will urge European arms companies next week to increase investment and boost production capacity as the alliance seeks to strengthen Europe's military capabilities and appease US President Donald Trump's frustrations. Sources familiar with the matter told the Financial Times that Rutte is scheduled to meet with leaders of major European defense groups in Brussels to press them for action and pave the way for a major announcement at NATO's annual summit in Ankara, Turkey, in July. Industry insiders noted that while Rutte regularly confers with top executives from major European defense firms, gathering a large number of company representatives at once is unusual. His message conveying NATO's expectations highlights the urgent need within the alliance to demonstrate an expansion of its defense industry. Major European arms manufacturers, including Rheinmetall, Safran, Airbus, Saab, MBDA, and Leonardo, are expected to send representatives to the meeting. To placate Trump, who is angered by NATO's failure to support his stance on Iran, the alliance hopes European arms manufacturers will help meet his demands for increased defense spending. Furthermore, with growing doubts about Washington's commitments, Europe hopes these investments will reduce its dependence on the United States. At last year's NATO summit in The Hague, member states agreed to heed Trump's call to increase defense spending to 5% of their Gross Domestic Product (GDP). If European NATO allies meet the 5% defense spending target, Europe's total annual defense expenditure will increase by $1 trillion by 2035 compared to 2024. Rutte wants European defense companies to invest quickly rather than waiting for large new government orders. In recent years, European arms companies and national defense ministries have been divided on the root causes of insufficient European military production capacity. The companies accuse governments of not signing enough long-term procurement