For example, Germany also increased its military spending, true - but from a low starting point, with an army even sometimes lacking basic supplies like dumb ammunition due to massive underfunding since the end of the cold war.
The (possible, maybe!) reintroduction of drafting will be agonizingly slow, as the military doesn't have the capacity anymore (and will lack it for years to come!) to even examine even a small percentage of each year, let alone equip and train them. There are no KWEAs (Kreiswehrersatzämter, drafting centers) anymore, and the new "Career Centers" have abysmal throughput.
We sold a very very significant chunk of our military bases and heavy equipment. Those are gone, the federal government often doesn't even own the land anymore. We have almost no working bunkers anymore, both military and public. Etc, etc.
Those are things which we would have to start to change immediately, as it takes ages until we see results. We do sorta, but on a tiny scale - it's not the massive investment you would expect for a country readying itself for conflict.
German politics / state departments are, IMO, in no way readying the public for the real prospect of military conflict. Pistorius, the German defence minister, basically screams into the void. Yes, many agree in talk, but the walk is quite underwhelming.
The defence ministry says we have to be ready for war until 2029. Most projects which are started now will, based on information by the same ministry, never ever be finished until before the 2030s. And yet, there is no hurry visible. We still have time.