What is the {sovereign state} for {significant event} of {Cuban Missile Crisis}
The Cuban Missile Crisis was a significant event for which countries?
 select distinct ?sbj where { ?sbj wdt:P793 wd:Q128160 . ?sbj wdt:P31 wd:Q3624078 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P793> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q128160> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q3624078> } 
The Cuban Rocket Emergency was a critical occasion for which countries?