ughout Russia's  history, they have been in search of a port - a quest advanced further  by Peter the Great and Catherine the Great. The Soviets in that  respect were direct threats to their non-Communist neighbors: Greece,  Turkey, and Iran.         In Iran, the U.S.S.R. was not evacuating Iran's northern  provinces despite entreaties from the United States. In Turkey, the Soviet Union coveted several naval bases along the Straits of  Dardanelles. Further, they pressured Turkey for border cessions that  Turkey had taken from Russia after World War I. In Greece, the Soviets  encouraged the insurgent leader Markos Vafiades with arms and economic  support. The British troops helping the Grecian government were  strangled of supplies due to poor economic times in Britain. Also,  further territorial requisitions to Yugoslavia, Albania, and Bulgaria  were being made.         Seeing the deteriorating U.S. - Soviet relations, Truman  issued two statements about "agreements, violations, reparations, and Soviet actions threatening U.S. security." "1. The Middle East is of  strategic importance to the U.S.S.R.(from which they are in range of  an air attack.) 2. The U.S. must be prepared to wage atomic and  biological warfare." (Ferrel 247) Soon after, he sent bombers to the  Middle East. He desired the return of all arms given to U.S.S.R. under  the Lend-Lease Act.         There isn't a doubt in my mind that Russia intends an invasion  of Turkey and seizure of the Black Sea straits to the Mediterranean.  Unless Russia is faced with an iron fist and strong language another  war is in the making, How many divisions have you? Truman had his eye  on the Soviets and on war. However, The U.S.S.R. never made such  invasions and thus quelled Truman's paranoia. The Truman Doctrine was  starting to develop during 1947 when Truman issued several statements. 1. The present Russian ambassador . . . persona non grata . . . does  not belong in Washington. 2. Ur...