I've just watched "tagesschau" (the most important German news) and saw this:
BIP = GDP. It is showing the planned defense budget of Germany.
Why are budget categories compared to GDP? Why are they planned in percentage of GDP? Shouldn't they be planned as a percentage of the budget?
This is not only done in Germany, but also in the US (example - but at least this one has the relation of the budget to GDP).