I'll show you something that started it all in Ukraine. Check out all NATO military exercises.
US Navy SEALs are training to fight on land and water in a 'strategic location' near Putin´s empire
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US Special Operations Europe (SOCEUR) conducted its largest annual exercise in conjunction with a smaller one, training with special-operations units from several NATO member and partner countries.
Trojan Footprint 21 and Black Swan 21 are especially pertinent as tensions with Russia in Eastern Ukraine and Crimea are still simmering.
SOCEUR planned both exercises to happen at the same time to simulate a full-blown conflict with Moscow ranging from the Baltic states and Scandinavia south to Ukraine and the Black Sea region."
finally we are ready to fight back aggressive Muscovite oriental imperialistic despotism, and I love those names - Trojan Footprint 21 and Black Swan 21 , the next step : NATO membership for Ukraine , Georgia and Moldova and oil - gas "Iranian" sanctions on Moscow
https://www.businessinsider.com/navy-seals-swcc-training-for-land-water-combat-near-russia-2021-5?r=US&IR=T
Operations further afield likely will not be acknowledged by Russia to be directly part of Zapad-21. As in past exercises, Russia will provide little transparency to evade its treaty obligations to the Organization for Security and Cooperation in Europe (OSCE)
https://www.osce.org/files/f/documents/a/4/86597.pdf
1- Z: Russian forces from the Eastern Military District
2- Z enclosed in square: Russian forces from Crimea
3- O: Forces from Belarus
4- V: Russian Marines
5- X: Forces from Chechnya (Kadyrovtsy)
6- A: Special forces, including SOBR, Alpha Group, and the Special Operations Forces
Russia’s Military exercise Districts, Zapad, Vostok, Tsentr, and Kavkaz