It would have been possible to record the statements in this paragraph under "The Neutral Countries". The United States officially entered into the war in December, 1941. Japan attacked Pearl Harbour on Dec. 7 and Hitler declared war upon the United States, on Dec. 11, 1941. Until that time, it was at least pretended that the United States was neutral and the spirit of isolationism was still strong. Before 1942, strong statements against anti-Semitism were issued by Protestant Churches in the U.S.A., especially by the Federal Council of Churches. After Hitler's declaration of war, however, the statements took on an additional clarity: "Anybody spreading anti-Semitism is helping Hitler just as much as if he were a paid agent of the Reich." [554] Anti-Semitism became "treason against God, treason against the country." [555] <256> On the evening of December 14, 1939, a mass meeting was held at Madison Square Garden, New York, for the purpose of registering a protest against the treatment of the Jews in Poland and other areas under the Nazi regime. The meeting was attended by 20,000 people. Expressing the sympathy of Christians, Dr. Samuel McCrea Cavert, General Secretary of the Federal Council of Churches, pointed out, that Christians as well as Jews were suffering in Poland and other parts of Europe and that "Christians have a direct stake in what is happening". In conclusion, he said: "Out of the calamity in Europe, there emerges one by-product for which we may be thankful - the new sense of fellowship between Jew and Christian in America. Nothing so quickly unites men as a cry of desperate human need. I do not believe there has ever been a time when Christian hearts in America beat in such sympathy for their Jewish neighbours. There are differences of religious conviction between Jew and Christian - at one point a momentous difference - but we share together the priceless spiritual heritage of Israel. As His Holiness Pope Pius XI truly and nobly said, 'Spiritually we are all Semites'." [556] The United Church of Christ issued the following statement in 1940: