Answer:
Germany was mad with the US-British relationship back in World War 1 because Germany was down powered by the Anglo American relationships.
Step-by-step explanation:
The political, cultural and economic relationship between the governments of the British and the United States strengthened by the means of the First World War. Since then the British American relationship also known as the Anglo-American relationship has been through the war together.
Germany was affected as the invasion and succession of the Western front was not impossible due to the support of the British to the American troops portraying Germany as a bigger threat to American Troops also ranging in a lot of conflicts regarding diplomacy and change in opinion supported by the government of UK down powered Germany.