Leonardo is trading 4.4% higher at €50.26 amid a Friday European defense rally and uncertainty over continued U.S. military and intelligence support for Ukraine. - Leaders gathered in Brussels to support Ukraine; gains in Rheinmetall, Leonardo, Thales, Saab and BAE Systems point to a sector-wide move, not a confirmed Leonardo-specific catalyst. - An October 16 lunar-exploration MoU with ispace and Telespazio covers potential communications, navigation and transportation collaboration; reporting does not link it to the move.