And a good question it is.
If true Reagan philosophy Republicans had been in charge from the end of the Reagan Presidency until now, the answer is resoundingly no, this never would have happened.
And not because Reagan was strong, but because he was trustworthy. The Russians and Eastern Europe would not be reacting to empty threats of force and valid incidents of aggression, thievery, piracy and persecution of Christians.
Reagan didn't threaten force, he promised reasonably free market capitalistic growth, and he always kept his promises.
The American Socialist left has given rise to both the problem and the Neo-Con Faschista warmongers who won't have to risk their lives when they try to get tough with Putin.
Reagan was probably the most reluctant warrior of our lives and it paid big dividends. He didn’t talk tough unless he meant it and the world knew it.
Russia has a long history of drawing enemies in and letting them defeat themselves (See Napoleon and the Nazis). That strategy works great if you have an opponent dumb enough to be drawn in. Reagan wasn’t that dumb and it resulted in the collapse of the soviet union.
Reagan strengthened our military by using them sparingly while building our technological advantages. Today, we’re broke, our military is over extended, worn out and increasingly demoralized by endless social experimentation.