(ANSA-AFP) - HAMBURG, JAN 26 - A group of northern European nations vowed Monday to build up climate-friendly wind power in the North Sea to achieve greater energy independence from Russia and other foreign suppliers. German Chancellor Friedrich Merz was hosting a summit in the port-city of Hamburg as Europe faces a hostile Russia but also worries about the future strength of transatlantic ties and US designs on Greenland. Aiming to make Europe more resilient in an uncertain world, the group of countries pledged to boost off-shore wind power in the North Sea and turn it into the "world's largest clean energy reservoir". They agreed to build up an additional 100 gigawatts of wind turbines -- enough to power about 100 million homes -- through an "unprecedented fleet of joint offshore wind projects". The agreement is a "very clear signal to Russia", said EU Energy Commissioner Dan Jorgensen after it was signed by Britain, Belgium, Denmark, France, Germany, Iceland, Ireland, Luxembourg, the Netherlands and Norway. "No more will we let you blackmail member states of the European Union and no more will we help indirectly fund the war in Ukraine," he told a press conference. (ANSA-AFP).