Question: Following the war where Memoirs of a Geisha is set, a conflict in which Germany was divided into two countries developed, between the U.S. and what nation?

Knowledge 1: Memoirs of a Geisha
Memoirs of a Geisha is a historical novel by American author Arthur Golden, published in 1997. The novel, told in first person perspective, tells the story of a fictional geisha working in Kyoto, Japan, before and after World War II. [SEP] Knowledge 2: History of Germany (1945–1990)
The Cold War divided Germany between the Allies in the west and Soviets in the east. Germans had little voice in government until 1949 when two states emerged: [SEP] Knowledge 3: Soviet Union–United States relations
The relations between the United States of America and the Union of Soviet Socialist Republics (1922 -- 1991) succeeded the previous relations from 1776 to 1917 and predate today's relations that began in 1992. Full diplomatic relations between the two countries were established late due to mutual hostility. During World War II, the two countries were briefly allies. At the end of the war, the first signs of post-war mistrust and hostility began to appear between the two countries, escalating into the Cold War; a period of tense hostile relations, with periods of détente.
Knowledge 1: History of Germany (1945–1990)
The Cold War divided Germany between the Allies in the west and Soviets in the east. Germans had little voice in government until 1949 when two states emerged: [SEP] Knowledge 2: Soviet Union–United States relations
The relations between the United States of America and the Union of Soviet Socialist Republics (1922 -- 1991) succeeded the previous relations from 1776 to 1917 and predate today's relations that began in 1992. Full diplomatic relations between the two countries were established late due to mutual hostility. During World War II, the two countries were briefly allies. At the end of the war, the first signs of post-war mistrust and hostility began to appear between the two countries, escalating into the Cold War; a period of tense hostile relations, with periods of détente. [SEP] Knowledge 3: Memoirs of a Geisha
Memoirs of a Geisha is a historical novel by American author Arthur Golden, published in 1997. The novel, told in first person perspective, tells the story of a fictional geisha working in Kyoto, Japan, before and after World War II.
Knowledge 1: Memoirs of a Geisha
Memoirs of a Geisha is a historical novel by American author Arthur Golden, published in 1997. The novel, told in first person perspective, tells the story of a fictional geisha working in Kyoto, Japan, before and after World War II. [SEP] Knowledge 2: History of Germany (1945–1990)
The Cold War divided Germany between the Allies in the west and Soviets in the east. Germans had little voice in government until 1949 when two states emerged: [SEP] Knowledge 3: Military history of the United States
World War II holds a special place in the American psyche as the country's greatest triumph, and the U.S. military personnel of World War II are frequently referred to as "the Greatest Generation." Over 16 million served (about 11% of the population), and over 400,000 died during the war. The U.S. emerged as one of the two undisputed superpowers along with the Soviet Union, and unlike the Soviet Union, the U.S. homeland was virtually untouched by the ravages of war. During and following World War II, the United States and Britain developed an increasingly strong defense and intelligence relationship. Manifestations of this include extensive basing of U.S. forces in the UK, shared intelligence, shared military technology (e.g. nuclear technology), and shared procurement.

Answer: Union of Soviet Socialist Republics