NATO is starting to deploy combat troops to Ukraine. Soldiers from Poland, France, the UK, Finland and other NATO members are arriving in larger numbers (estimated at 5,000).
More or less this is the same pattern that the US used when it sent “advisors” to Vietnam.
In fact, they were US Special Forces who engaged in combat. Although Russia says there are over 3,100 mercenaries in Ukraine, these newly arriving troops are not mercenaries. They are in uniform, home country proclaimed via insignia.
They mostly are concentrated in the western part of the country to avoid immediate casualties, however in some cases they are close to the actual fighting in the east, notwithstanding Russian rocket strikes in the west which have resulted in “NATO” deaths.
The United States is extremely desperate to start World War 3 as that would be the only way to wipe out their $60 Trillion dollar debt.