Question: In 2017, who is the president of the organization in which the U.S. and the country that was called Russia before the Russian Revolution became important members?

<P0-S0> The Russian Empire collapsed with the abdication of Emperor Nicholas II and the old regime was replaced by a provisional government during the first revolution of February 1917 (March in the Gregorian calendar; the older Julian calendar was in use in Russia at the time). <P0-S1> The Russian Revolution was a pair of revolutions in Russia in 1917 which dismantled the Tsarist autocracy and led to the rise of the Soviet Union. <P0-S2> Alongside it arose grassroots community assemblies (called 'soviets') which contended for authority. <P0-S3> In the second revolution that October, the Provisional Government was toppled and all power was given to the soviets. <SEP> <P1-S0> The Soviet Union suffered greatly in the war, losing around 27 million people. <P1-S1> Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941 -- 42. <P1-S2> During the war, the Soviet Union together with the United States, the United Kingdom and China were considered as the Big Four of Allied powers in World War II and later became the Four Policemen which was the foundation of the United Nations Security Council. <P1-S3> It emerged as a superpower in the post-war period. <P1-S4> Once denied diplomatic recognition by the Western world, the Soviet Union had official relations with practically every nation by the late 1940s. <P1-S5> A member of the United Nations at its foundation in 1945, the Soviet Union became one of the five permanent members of the United Nations Security Council, which gave it the right to veto any of its resolutions. <SEP> <P2-S0> the body that would become the senate was established in 1809, when tsar alexander i of russia summoned the diet of porvoo and directed the diet to draw up regulations for a government council. <P2-S1> in 1816, alexander renamed this body the senate to demonstrate that it was equal to rather than inferior to its russian equivalent.the senate was headed by the governor-general of finland. <P2-S2> the members of the senate had to be finnish citizens. <P2-S3> the senate was divided into the economic division and the judicial division. <P2-S4> in 1822 both divisions were given a finnish vice-chairman. <P2-S5> from 1858 and onwards the members of the senate were formally known as senators. <P2-S6> after the february revolution in russia the vice chairman of the economic division became the chairman of the senate. <P2-S7> due to the civil war in 1918 the senate was relocated to the town of vaasa from january 29 to may 3. <SEP> <P3-S0> ella aleksandrovna pamfilova (элла александровна памфилова; born 12 september 1953, almalyk) is a russian politician, former deputy of the state duma, candidate for president in 2000 and former chairman (2004 - 2010) of the civil society institution and human rights council of the russian federation. <P3-S1> on 18 march 2014 she became russia's commissioner for human rights, succeeding vladimir lukin. <P3-S2> on 28 march 2016 she became the chair of the central election commission of russia. <SEP> <P4-S0> Miroslav Lajčák of Slovakia has been elected as the United Nations General Assembly President of its 72nd session beginning in September 2017.