During 1968, the turmoil created chaos, political, and civil rights problems caused by race segregation protests. A media report gave information on a speech given by the Speaker of the Democratic Party on behalf of the running President. It left a negative impact when he opted of violence using police force strategies to end the protests while people riot for their rights. It turned the tide in favor of the Republicans President Nixon and George Wallace.
I could be wrong but I am pretty sure the answer is Oil.
Explanation:
After America cut off oil from Japan, due to expansion reasons I believe, Japan got really upset and Pearl Harbor happened if I remember correctly! Hope this helped!! :)