In what way is that preferable for Poland to the "virtually disarmed" Germany you have right now?
Germany is forbidden by international treaties to possess or develop any types of weapons of mass destructions: biological, chemical or nuclear.
I was referring to conventional assured destruction ie. bombing [Poland, US and Russia didn't sign the Convention on Cluster Munitions, the most lethal of non-mass destruction weapons], use of MLRS launchers and high caliber howitzers.
I'm from one of the last age groups which served in Polish Army under conscription before it was fully professionalized in 2010 so I know a bit about army.
Polish military doctrine is based on defense and counter attack. Poland doesn't build great offensive forces since it doesn't plan to invade anyone. And for international operations there are special units, best of the best: GROM, Agat and Formoza.
In general, the aggressor needs to have 3x as much military power [troops, equipment, supplies] as defender to effectively destroy the defending army and even more than that to control the occupied territory, which will soon be a theatre of territorial defense units operation and guerrilla warfare.