<span>President
Johnson committed more troops to fight on the ground in Vietnam</span><span>
because he faced an overwhelming political pressure for a hard-line approach on
communism. Moreover, President Johnson was acting in response to the US
commitment to succeed in Vietnam. He also envisaged
countering the Domino effect through containment.</span>
 
        
             
        
        
        
During the 1920s African American lives became better significantly better because their lives were changed socially and politically giving them more opportunities.  (I hope this helps you :-} )
 
        
             
        
        
        
Answer:
These three constitutional amendments 
Explanation:
These three constitutional amendments abolished slavery and guaranteed equal protection of the laws and the right to vote. Passed by Congress January 31, 1865. Ratified December 6, 1865.
 
        
             
        
        
        
There have been 20 presidents since 1900