The United States and Canada scrambled multiple aircraft to track Russian military planes flying near Alaska on Wednesday. The North American Aerospace Defense Command (NORAD) said that its aircraft tracked two Tupolev Tu-95 four-engine strategic bombers and two Sukhoi Su-35 air defense fighters in the Alaska Air Defense Identification Zone (ADIZ). NORAD, a joint U.S.-Canadian command, said it dispatched an E-3 Sentry surveillance plane, four F-16 Fighting Falcons and four KC-135 aerial tankers to intercept the Russian aircraft, which remained in international airspace. It comes days after Estonia said that Russian aircraft had breached the NATO member's airspace.