Germany's leader Friedrich Merz and Ukraine's head Volodymyr Zelenskyy met in Berlin on August 13, 2025 War with Russia has lasted over three years, increasing demand for arms Rheinmetall opened a large ammunition factory in Germany to produce NATO-standard 155mm shells NATO Chief Mark Rutte said Europe's artillery shell production is now six times greater than two years ago Germany increased military aid to Ukraine, discussed peace efforts, and advocated for security measures.