2007 in Georgia saw a number of military incidents involving Georgia and Russia over the Abkhazia area. Abkhazia is a partially recognised state within Georgia's territory. In March, Georgia accused Russia of attacking the Kodori Valley in Upper Abkhazia, which was the only area in Abkhazia that Georgia controlled. Russia denied the claims, saying that their aircraft in the area were grounded at the time. In August, Georgia claimed that Russia fired a missile into Georgia. This claim was confirmed by 2 investigation teams but challenged by a Russian investigation team. Also in August, Georgia claimed it shot down Russian aircraft that were in Georgia's airspace over the Georgia-controlled Upper Abkhazia area. Russia denied this claim and Abkhazia said that it was an American or Georgian aircraft that crashed in Abkhazia. Abkhazia also held elections that were not recognised by any countries. The president was Mikheil Saakashvili, who stepped down in November to run in the 2008 elections, which he won, again becoming president and replacing Nino Burjanadze who had been acting president since he stepped down.