Star surrounded by a wreath. 1955–1991 1963 saw all Starshina insignia in the Army and Air Force change to their final design. In 1970 all Starshinas became full-time senior non-commissioned officers and enlisted personnel and the new NCO rank of Praporshchik became a Warrant Officer rank, with a new rank of Senior Praporshchik created for senior rank holders later in 1981. And in 1974, Generals of the Army had one star on their shoulder epaulets rather than four with surrounding wreaths. The final rank structure from these reforms stayed well until the Union's dissolution and is the basis for the current ranks of the Russian Ground Forces. These ranks also became the basic ranks for the Soviet Air Forces in 1918 and the Soviet Air Defense Forces (from 1932 to 1949 part of the Soviet Air Force and the Red Army, 1949 independent branch, and from 1954 a full-service arm of the Soviet Armed Forces), and from 1991 onward became the basis for the present ranks of the Russian Air Force (including the Air Defense Forces from 1998 onward) and from 2001, the Russian Aerospace Defence Forces (Formerly the Space Forces). The only exceptions were the use of the ranks of Marshal of Aviation and Chief Marshal of Aviation, which replaced the rank of General of the Army until the latter became the highest officer rank in 1993. Naval ranks and rates In 1918, the Soviet Navy was raised from the pro-Bolshevik sailors and officers of the Imperial Russian Navy as the Workers' and Peasants' Red Fleet by a decree by the Soviet Council of People's Commissars. The ranks and rates were, just like in their counterparts in the Army, personal positions for officers, Petty Officers, and seaman rates. The former officers of the IRN who joined the ranks of this new navy retained their ranks with the abbreviation "b." meaning "former" while the new officers were addressed by their positional ranks. They stayed that way until 1925 when new ranks and rates were created. The rank insignia for the 1918–25 ranks were on the sleeve and cuff. Most of the officer ranks were revived in 1935, save for the high-ranking officers, and the new PO rank of Squad Commander. The PO rank of Starshina was retained, however. In 1939 all flag officer ranks were reinstated and Midshipman became the highest enlisted rating in the Navy, and in the course