You have to adjust figures for PPP, or Purchasing Power Parity, due to exchange rate differences. In 2024, Russia's PPP adjusted military spend was somewhere between $300B and $400B [1][2]. Their technology is also vastly superior to Germany's and they have a much larger personnel. It doesn't matter how much you spend if you don't get your money's worth.

The 100B euro investment was also a temporary one-off budget allocation that had been distributed over the past 2 years and to little effect: https://www.grosswald.org/eu100-billion-later-fixing-the-bun...

[1] https://cepr.org/voxeu/columns/debating-defence-budgets-why-... [2] https://militaryppp.com/blog/