the Khorezm and Bukharan SSRs. In 1929, Tajikistan was split off from the Uzbekistan SSR. With the constitution of 1936, the Transcaucasian SFSR was dissolved, resulting in its constituent republics of Armenia, Georgia and Azerbaijan being elevated to Union Republics, while Kazakhstan and Kirghizia were split off from Russian SFSR, resulting in the same status. In August 1940, Moldavia was formed from parts of Ukraine and Bessarabia and Ukrainian SSR. Estonia, Latvia and Lithuania (SSRs) were also admitted into the union which was not recognized by most of the international community and was considered an illegal occupation. Karelia was split off from Russia as a Union Republic in March 1940 and was reabsorbed in 1956. Between July 1956 and September 1991, there were 15 union republics (see map below). While nominally a union of equals, in practice the Soviet Union was dominated by Russians. The domination was so absolute that for most of its existence, the country was commonly (but incorrectly) referred to as ‘Russia’. While the RSFSR was technically only one republic within the larger union, it was by far the largest (both in terms of population and area), most powerful, and most highly developed. The RSFSR was also the industrial center of the Soviet Union. Historian Matthew White wrote that it was an open secret that the country's federal structure was ‘window dressing’ for Russian dominance. For that reason, the people of the USSR were usually called ‘Russians’, not ‘Soviets’, since ‘everyone knew who really ran the show’. Military Under the Military Law of September 1925, the Soviet Armed Forces consisted of the Land Forces, the Air Force, the Navy, Joint State Political Directorate (OGPU), and the Internal Troops. The OGPU later became independent and in 1934 joined the NKVD, and so its internal troops were under the joint leadership of the defense and internal commissariats. After World War II, Strategic Missile Forces (1959), Air Defense Forces (1948) and National Civil Defense Forces (1970) were formed, which ranked first, third, and sixth in the official Soviet system of importance (ground forces were second, Air Force Fourth, and Navy Fifth). The army had the greatest political influence. In 1989, there served two million soldiers divided between 150 motorized and 52 armored divisions. Until the early 1960s, the Soviet navy was a rather small military branch, but after the Caribbean crisis, under the leadership of Sergei Gorshkov, it expanded significantly.