Which ally are you referring to? The European armies have become a laughing stock around the world. The Saudi Army has very expensive equipment, but the soldiers don't know how to use them. Only Japan is having a strong army, among the allies of the United States.
As long as it is enough to hold russia down all is good. No need to waste money
In Europe, Russia could easily take Baltic states, Norway and Sweden. Finland would be surrounded and would eventually surrender. NATO or US forces could not prevent this. But why would they do it now when Soros & Co invasion plan is put on hold because of Trump
If the Russians wanted to invade the Baltic states, then they would have done it decades back. The truth is that Putin does not consider these countries as part of historical Russian homeland, and therefore he has no interest in merging the Baltics with Russia.
So the West is trying to weaken Russia before the invasion? That means that Russia have to strike first.