In his 1997 book The Grand Chessboard Zbigniew Brzezinski did say that if Europe went to war again it would start in Ukraine.
Some choice quotes:
“Ukraine, a new and important space on the Eurasian chessboard, is a geopolitical pivot because its very existence as an independent country helps to transform Russia. Without Ukraine, Russia ceases to be a Eurasian empire.”
“However, if Moscow regains control over Ukraine, with its 52 million people and major resources as well as access to the Black Sea, Russia automatically again regains the wherewithal to become a powerful imperial state, spanning Europe and Asia.”
Some choice quotes:
“Ukraine, a new and important space on the Eurasian chessboard, is a geopolitical pivot because its very existence as an independent country helps to transform Russia. Without Ukraine, Russia ceases to be a Eurasian empire.”
“However, if Moscow regains control over Ukraine, with its 52 million people and major resources as well as access to the Black Sea, Russia automatically again regains the wherewithal to become a powerful imperial state, spanning Europe and Asia.”