Fears of Putin's ability to defend Russia rise as attacks continue.

A group of anti-Kremlin militants crossed into the Belgorod region of Russia, causing damage and triggering skepticism of Putin's regime. The incident adds to fears that Russia's troops may not be able to stop a potential Ukrainian counter-offensive, which has been strengthened by Western-made weapons. The Russian military has announced it is moving attack helicopters and rocket launchers into the area to evict the rebels.