What's so important about Ukraine?

3 topics of Ukraine that I did not know, and have not heard spoken about by anyone as of yet.
Europerenaissance.com: Ukraine does not have any borders so what exactly are they defending by Mike Walsh.
and The Crisis in Ukraine is not about Ukraine, Its about Germany by Mike Walsh.
Stillnessinthestorm.com: US Embassy removes Ukrainian BioLab pdf's from website by Justin Deschamps