I would say Capital Goods and Government Companies! Forgive me if I am wrong.
Although the effectiveness of these tactics can be question, it was in "a Korea and Indochina" that the Eisenhower administration effectively use brinkmanship, since this was part of the Cold War.
In any nonviolent campaign there are four basic steps: 1) collection of the facts to determine whether injustices are alive; 2) negotiation; 3) self-purification; and 4) direct action.
The war ended in Spring, 1865. Robert E. Lee surrendered the last major Confederate army to Ulysses S. Grant at Appomattox Courthouse on April 9, 1865.
Both groups have a very deep history of racial persecution that they and their ancestors went though
Hope this Helps