Truman's opposition to labor unions was one reason for the Democrats' defeat in the presidential election of 1952.
 
        
             
        
        
        
Brown made a point of recruiting fugitive slaves and free blacks to be part of his raid
        
             
        
        
        
Spain,Great Britain,Austria and other European nations
        
                    
             
        
        
        
In China between 1989 and 1901, a Chinese secret organization called the Yihequan (Righteous and harmonious fists) led an uprising in northern China against the spread of Western and Japanese influence there. The group practiced certain boxing and rituals in the belief that this made them invulnerable. Their members, referred to by Westerners as Boxers killed foreigners and Chinese Christians and destroyed foreign property. By the terms of the Boxer Protocol, which officially ended the rebellion in 1901, China agreed to pay more than $330 million in reparations.
 
        
             
        
        
        
Answer: Pearl harbor attack was so damaging because the Americans  believed the Japanese lacked the capacity to host such an attack.
Americans believed that the Japanese would attack the Philippines, south east Asia, or the Soviet Union, thus unpredicted.
Hope this helps^^