Ukraine is seeking an additional $20 billion in military funding from its allies to cement what it sees as its current battlefield advantage over Russia, a Ukrainian defence source said on Friday. The request will be made next Thursday at a meeting of the Ukraine Defense Contact Group, an alliance of more than 50 countries also known as the Ramstein group that provide financial and military aid for Kyiv. Russia's advances have slowed this year - effectively grinding to a halt last month - as Ukrainian mid-range drone strikes have harmed its supplies and logistics for the front line. Long-range...