In 2011, US Senator John McCain claimed in a visit to Moldova that Moscow is violating the territorial integrity of Moldova and Georgia and one of the "fundamental norms" of "international behavior". On 21 May 2015, the Ukrainian parliament passed a law terminating five co-operation agreements with Russia. This law effectively terminates the "Agreement on transit of Russian military units temporarily located on the territory of the Republic of Moldova through the territory of Ukraine" dated 4 December 1998.