During the Cold War, the United States, Soviet Union, and to a lesser extent China embarked on an aggressive campaign of nuclear armament proliferation. The nuclear arms race and the prolonged war in Vietnam sparked worldwide protests, which Casals supported by continuing his performance boycott. He established collaborations with Dr. Albert Schweitzer and other peace activists, and ultimately in 1960, began touring the world performing/conducting “El Pessebre.”
Casals received invitations to perform from numerous world figures, including María Cristina Queen Regent of Spain, Queen Victoria of Great Britain, US President Theodore Rosevelt, Queen Elizabeth of Belgium, and US President John F. Kennedy.
Pablo Casals rehearses in the Diplomatic Reception of the White House, November 13, 1961
Casals developed friendships and collaborated with scores of internationally acclaimed musicians, including violinists Yehudi Menuhin, Alexander Schneider, Isaac Stern; pianists Harold Bauer, Reine Gianoli, Mieczyslaw Horszowski, Eugene Istomin, Arthur Rubinstein, Jesús María Sanromá, Rudolf Serkin; cellists Takeichiro Hirai, Gilhermina Suggia, Rudolf von Tobel; and composer/conductor Richard Strauss.
Joan Alavedra was a Catalan poet, journalist, and close friend of Casals’. He wrote Poema del Pessebre, which inspired Casals’ oratorio “El Pessebre.”
Dr. Albert Schweitzer was a Swiss theologian, organist, musicologist, writer, humanitarian, philosopher, and physician. In 1958, Casals accepted his invitation to sign a manifesto demanding nuclear disarmament of the United States and Soviet Union.