Former Georgian President Mikhail Saakashvili is due to meet with U.S. lawmakers and officials in Washington to discuss "increasing legislative pressure" to provide weapons to Ukraine, he wrote in Facebook.
Many prominent members of the U.S. Congress have advocated providing arms to the Ukrainian government in its standoff with pro-Russian separatists in eastern Ukraine that Washington accuses Moscow of backing.
Saakashvili left Georgia after his presidency ended in November 2013 and is currently serving as the head of the Advisory International Council of Reforms in Ukraine.
Georgia has sought to have Ukraine extradite Saakashvili to face abuse of authority and other charges, still Kiev refused to hand over Mikhail Saakashvili to Tbilisi.
U.S. Secretary of State John Kerry said on February 21 that U.S. President Barack Obama would examine the possibility of arming Ukrainian forces to fight the rebels.