Roki Tunnel
The passage of Russian forces through the narrow Roki Tunnel and along the mountain roads was slow and the Russians had difficulties in concentrating their troops, forcing them to bring their forces into battle battalion by battalion. In the afternoon of 9 August, the regrouped Georgian troops tried to regain their control of position in Tskhinvali. The Georgians launched several attacks, including some with tanks. The assault was met with resistance and the Georgians suffered losses, forcing them to withdraw. Because of the gradual increase in troops, the amassed Russian forces in South Ossetia outnumbered the Georgians by nearly two to one on 9 August. In total, the Russians moved between 5,500 and 10,000 troops to South Ossetia through the Roki Tunnel, according to "Der Spiegel".