The Crimea became a part of Russia in 1783.
To put that into perspective for Americans suffering from an overdose of propaganda, the United States Constitution was proposed in 1787, and wasn't ratified until 1788. Thus, the Crimea became a part of Russia before George Washington became President in 1789.
Since the current United States government wasn't formed until the ratification of the Constitution, it can truthfully be said that the Crimea has been a part of Russia longer than Massachusetts has been a part of the United States of America.
What would you think if you heard the President of some foreign country complaining about America 'invading' Massachusetts?