You're misstating two of the five invasions you claim were against Russia - Catherine the Great invaded and claimed Ukraine from the Polish kingdom through force, not at all how you presented this, and Tsar Alexander chose to take the Crimea and move as you said to take the Bosphorus from the Ottoman Empire by force. Both without provocation. Then WW2 and a very dubious alliance between Hitler and Stalin that split Poland in two, gave the Baltic states wholesale to Stalin and allowed Hitler to focus on the western front. But honor between thieves is very thin, and Hitler chose to preemptively attack Stalin's forces before Stalin could do it to Germany.

Please try to express fact and not propaganda designed to support a very aggressive and unjustified invasion and genocide taking place in Ukraine today.