Three soldiers stand by a bent-over destroyed sign that says
A destroyed border checkpoint with the sign "Ukraine" and "Russia" on August 16, 2024 in Sudzha, Russia.
  • Russia's response to Ukraine's invasion of Kursk has been a bit of a mess.
  • The Kremlin didn't mount a large military response and instead called on units unlikely to mix well.
  • Experts said it shows that an issue long plaguing Russia's military is still doing so.

Russia's jumbled response to Ukraine's invasion of its Kursk region indicates that its military is still suffering from a critical weakness, warfare experts told Business Insider.