I'm convinced that that could easily be disproven if put to the test.
That probably isn't going to happen in the near future.
The Polish military is also very small compared to a lot of other countries in the world. Their military spending is also low.
This actually proves how smart the Polish government is. They are now concentrating on issues which matter(health, education, roads, etc) rather than a useless asset like an army.
Look at India and China. they maintain the largest militaries and spend massive amounts of money...but their people are starving. They make nukes but don't have money to bake bread.
A war today is not won by the army, it's won by your economy, your diplomacy and your alliances. The army is just something which governments use to stroke their egos with and use as a political weapon to gain votes. How many years has it been seen Europe actually landed themselves in a war? More than 60...Now that is the way to go.