MYKOLAIV, Ukraine — A Ukrainian reconnaissance team darts through a valley, hiding behind stacks of tires and firing at red, steel targets as far as a football field away. The bullets frequently find their mark with a loud clang and a flash of sparks.
Normally, Col. Roman Kostenko would be in his parliamentary office more than 300 miles to the north in Kyiv. But today, he's overseeing part of a team he put together after Russian forces invaded the country in late February.
