Final answer:
The question is about securing access to oil during World War I and beyond through buying a majority stake in the oil industry.
Step-by-step explanation:
The subject of this question is History.
During World War I and beyond, a country secured access to oil by buying a majority stake in the oil industry.
An example of this is when the British government purchased a majority stake in the Anglo-Persian Oil Company, which later became British Petroleum (BP). This ensured a guaranteed supply of oil for their military and helped them maintain control over critical energy resources during the war.
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