- Russia's defenses are proving effective in frustrating the Ukrainian counteroffensive.
- Its use of mines, adaptable drones, and electronic warfare are particularly formidable, experts said.
- One expert told Insider that Russia has adapted quickly to new Ukrainian tactics and warfare.
Russia's use of multi-layered mines, adaptable drones, and electronic warfare in Ukraine is causing a standstill on the frontlines, according to multiple reports and experts.