The breakdown of trust (Edexcel GCSE History): Revision Notes
The breakdown of trust
Introduction
Following the end of World War II, relations between the USA and Soviet Union rapidly deteriorated. Without a common enemy to unite them, the fundamental differences between these superpowers became increasingly apparent. Trust broke down because neither side could rely on the other, primarily due to their opposing political beliefs and the fact that only America possessed nuclear weapons.
Understanding ideology
Ideology represents a collection of political beliefs about how society should be organised and governed. Grasping this concept is essential for understanding the Cold War, as the USA and Soviet Union held completely different ideological views that influenced all their decisions.
The ideological divide between capitalism and communism wasn't just about economics—it represented fundamentally different visions of human nature, individual rights, and the role of government in society.
Contrasting ideological systems
The core disagreement between capitalist and communist philosophies created deep-seated mistrust between the superpowers.

The USA, Britain and capitalist nations
Capitalist countries viewed communism as a system that enslaved people to serve the state. Their ideology centred on liberty and democratic principles:
- People should have the freedom to earn money for themselves
- Individuals make better economic decisions than government bureaucrats
- International trade creates prosperity for all participating nations
The Soviet Union and communist nations
Communist countries argued that capitalism exploited workers to make the wealthy even richer. Their ideology emphasised equality and collective benefit:
- Capitalism benefits only a small elite by exploiting the majority
- People achieve more when working together towards shared objectives
- The government should manage the economy to benefit everyone equally
These weren't just political disagreements—each side genuinely believed the other's system was morally wrong and threatened their way of life. This fundamental incompatibility made cooperation extremely difficult.
Critical primary sources from 1946
Two significant diplomatic communications from 1946 demonstrate the extent of mutual distrust between the superpowers. These telegrams provide crucial insight into how each superpower viewed the other's intentions.
The Long Telegram (1946)
US Ambassador Kennan sent this confidential report from Moscow to President Truman, warning that:
- The Soviet Union considered capitalism a dangerous threat to communism that required destruction
- The Soviet Union was rapidly expanding its military capabilities
- Peaceful relations between communist and capitalist superpowers were impossible to achieve
Novikov's Telegram (1946)
Soviet Ambassador Novikov submitted this report to Stalin, expressing comparable concerns about American objectives:
- The USA desired global dominance and was building up its armed forces
- The Soviet Union remained the only nation capable of challenging American power
- The USA was conditioning its population for eventual warfare against the Soviet Union
Nuclear weapons and escalating tensions
The development of atomic weapons intensified the deteriorating relationship. America regarded the Soviet Union as a threat to its economic influence in Europe, while the Soviet Union both feared and resented America's exclusive nuclear capability. This nuclear monopoly persisted until 1949 when the Soviets successfully tested their first atomic device.
America's nuclear monopoly from 1945-1949 created an unprecedented imbalance of power in international relations. The Soviet Union knew that in any direct conflict, they would face potential nuclear annihilation while being unable to retaliate in kind.
Timeline of major developments
- 1945: World War II concludes; tensions between former allies begin emerging
- 1946: The Long Telegram and Novikov's Telegram expose mutual suspicions between superpowers
- 1949: Soviet Union conducts first successful atomic bomb test, ending American nuclear monopoly
Remember!
Key Points to Remember:
-
Competing ideologies: The basic conflict between capitalism (promoting individual liberty) and communism (promoting collective equality) created fundamental incompatibilities
-
Reciprocal distrust: Both diplomatic telegrams reveal that each superpower believed the other was plotting warfare and seeking global control
-
Atomic anxiety: America's exclusive possession of nuclear weapons until 1949 heightened Soviet fears and bitterness, preventing any possibility of trust
-
Absence of shared threats: Without Nazi Germany as a common opponent, ideological differences became the primary driver of superpower relations
-
1946 as pivotal year: The telegrams from this period clearly show how rapidly trust collapsed following the war's conclusion