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						  WASHINGTON (AP) &mdash; Intervening in a volatile and brutal crisis, President Barack Obama said Friday he has dispatched 100 U.S. troops to central Africa to support a years-long fight against a guerrilla group accused of horrific atrocities. Obama said they were sent to advise, not engage in combat, unless forced to defend themselves. In a letter to Congress, Obama said the troops will act as advisers in a long-running battle against the Lord&rsquo;s Resistance Army, considered one of Africa&rsquo;s most ruthless rebel groups, and help to hunt down its notorious leader, Joseph Kony. The first of the troops arrived in  &amp;hellip;
					  
				 
	  				  
   