"The United States and Russia are not just "joined at the hip" on the space station. Numerous other rocket projects rely on either Russian or Ukrainian space hardware and services. Even U.S. national security satellites are powered into orbit on an American rocket with a Russian-built rocket engine. What if the Soyuz spacecraft suddenly became unavailable for use by American astronauts, contract or no contract? Would it be the end of U.S. human spaceflight? Would it kick off a new round of extortionary price-gouging, both fiscal and diplomatic?"
"The U.S. announced late Monday it was suspending trade and investment talks with Russia as well as all "military-to-military engagements" as penalties for its actions in Ukraine."
Oleg Kotov (ISS Expedition 28 Commander) WIkipedia
Oleg Valeriyevich Kotov was born on October 27, 1965, in Simferopol, Crimean oblast in the Ukrainian SSR.