> What 'love' do you think the US should have given to Japan to stop them attacking?
Oil and military equipment.
> After the Japanese invasion of China in 1937 and French Indochina in 1940, the United States began to restrict trade with Japan. In 1940, it ceased exporting airplanes, airplane parts, aviation fuel and machine tools to Japan, and in 1941, it stopped the export of oil. This intensified the Japanese need for rubber from Malaya and oil from the Dutch East Indies [0]
[0] https://www.reference.com/history/did-japan-attack-united-st...
I kid though, it was a war situation for the US anyway. They stop supplying Japan, Japan goes to war. They keep supplying Japan, Japan gets stronger and secures more resources until it feels confident in going to war.