Ukrainian President Volodymyr Zelenskyy has written to US President Donald Trump and Congress asking for more American-made air defence ammunition to counter intensifying Russian ballistic missile attacks, Kyiv said Wednesday. Meanwhile, Russian lawmakers have backed a draft bill to have bank employees join the fight against Ukraine's long-range drones that strike deep inside Russia - with trained bank staff shooting down the unmanned aircraft. The steps came after a recent escalation in aerial attacks by both sides in the more than four-year war that followed Russia's all-out invasion of its neighbor.