Castro's successful visits to Harlem and the Bronx, his speech to the United Nations General Assembly, and the October 21 march of 3,000 against U.S. policy and subsequent picket lines at Cuba's UN mission in defense of the revolution - all these events dealt blows to the U.S. government's unceasing efforts to isolate and slander Cuba.
Events that damaged the U.S. government's unceasing efforts to isolate and slander Cuba were caused by various Castro activities.
( z1 cause :ARG0 ( z2 activity :ARG0 ( z3 person :name ( z4 name :op "Castro" ) ) :mod ( z5 various ) ) :ARG1 ( z6 event :ARG0-of ( z7 damage :ARG1 ( z8 effort :ARG0 ( z9 government-organization :ARG0-of ( z10 govern :ARG1 ( z11 country :name ( z12 name :op "U.S." ) ) ) ) ) :ARG1 ( z13 and :op ( z14 isolate :ARG0 z9 :ARG1 ( z15 country :name ( z16 name :op "Cuba" ) ) ) :op ( z17 slander :ARG0 z9 :ARG1 z15 ) ) :ARG1-of ( z18 cease :polarity - :ARG0 z8 ) ) ) )