Hi! Hopefully you'll get some other responses, but there have been a few questions around this topic before (particularly regarding the interplay between racism in the USA / Civil Rights and the Cold War / Soviet propaganda), so thought you might be interested in some of these

Soviet Union

• Did the Soviet union ever take advantage of the racial tensions in cold war america? particularly with blacks in the south?

• How did (or did) the USSR use the US's Civil Rights movement and issues like Jim Crow as propaganda?

• How did the Soviet Union seem to feel about Martin Luther King Jr. during the Civil Rights Movement?

• Did the Soviet Union have a "bite-sized" refutation of Capitalism?

• Did fear of Communism play a significant role in the granting of civil rights to American blacks?

• Is there any evidence of Soviet/Communist involvement in the black civil rights movement?

Cuba

• How interested was the world in the Martin Luther King Jr./Civil Rights movement going on in America?

• How did the civil rights movement affect the United States during the Cold War?

Misc

• What was reaction worldwide to the civil rights movement in America? - a quick global survey

• How were black tourists treated during segregation in the US? - foreign dignitaries in the USA

• When segregation was legal in the US, how were prominent black people from Africa (or other non-North American countries) treated on visits to the States? - a very ragged and rambling old post, but has a bit more on foreign dignitaries and intl image

• During the Civil Rights era of the U.S., how were blacks treated in other parts of the world? - Sweden

All of these posts have been archived by now, so if you have follow-up questions for any of the users, you can post them here; just tag the username to notify them