NASA's Catch-22: Russia may move astronaut training to Crimea
NASA also said at the time that it planned to continue to work with the Russian federation to continue the operation of the space station Station.
Since tensions erupted over Ukraine, Russia has continued to ferry NASA astronauts to the space station. Just this week, for example, a NASA astronaut and two cosmonauts flew back to Earth from the orbiter onboard a Soyuz capsule.
Everything has not been easy going for NASA and the Russian Federation, however.
In May, Russian Deputy Prime Minister Dmitry Rogozin said Russia plans to focus its attention on projects, other than the space station, after 2020.
NASA Administrator Charles Bolden spoke out a week later, saying work on the space station will continue with, or without, Russia's cooperation. He added that no single nation is indispensable, and that NASA intends to continue its work with the space station through at least 2024 as expected.