"...there is a small U.S. military presence at the embassy in conjunction with the Defense Attachés office to help us work on accountability of the material that is going in and out of Ukraine," Kirby said, referencing the weapons and other support the U.S. has been sending to Kyiv. "So they're attached to that embassy and to that the defense attache." Kirby...added that those troops "are not fighting on the battlefield." In addition, Fox News is told that the U.S. forces in Kyiv also provide security services.