British Prime Minister Rishi Sunak visited wartime Kyiv on Friday to sign a new security agreement and announce an increase in military funding for Ukraine to buy drones, including surveillance, long-range strike and sea drones. Britain, one of Ukraine's closest allies during President Vladimir Putin's Russian invasion, will increase its support in the next financial year to 2.5 billion pounds ($3.19 billion), an increase of 200 million pounds on the previous two years, Sunak said. "Our opponents around the world believe that we have neither the patience nor resources for long wars. So waver now, and we embolden not just...