Germany explicitly guaranteed that Rumsfeld wouldn’t be arrested.
When he wasn't a secretary, but out of office? [citation needed]
German judicial system isn’t running around jeopardizing it’s foreign relations.
Have you heard about this thing called division of power. If the government doesn't want iffy foreign incidences then the diplomatic corps avoids them by keeping people away from the country.
Just checked on wikipedia, your confusion might stem from the fact that prosecutors in the US don't have to prosecute if they don't feel like it. That's not a thing in Germany: If there's a suspicion then there's an investigation and if that results in sufficient evidence then there's a trial. None of it is optional, up to the individual public servant or least of all any politician.
Germany is simply not that special, UK or France are more important on the world stage.
...I'll leave you to that belief though then why are other ex Presidents here all the time.
you literally had to use broomsticks in military exercises because you have no rifles.
And this proves that you have no idea what you're talking about. First off, the broomstick (singular) was used not to simulate a rifle, but a machine gun on top of a command vehicle. Secondly, that command vehicle had exactly as much armament as it was supposed to have -- it's just that the unit disagreed with the top brass, they wanted the command vehicle to have a gun just like the other vehicles even if it lacks a dedicated gunner (it's the unit commander's seat). So they took a broomstick to an exercise, the commander simulated gunshots in his off-time, hit stuff (at least conceptually), and thereby convinced the top brass that command vehicles should, indeed, also have guns and that's why they now have them. It's the exact kind of cheeky insubordination you want in an army.
This is a level of insane German nationalism not seen outside of an Austrian in the 1930s.
Ah. Godwin's law. How predictable.