After the Japanese attack on Pearl Harbor, mainstream isolationist groups like the America First Committee, declined, but many smaller religious and socialist groups continued their opposition to war. Bertrand Russell argued that the necessity of defeating Adolf Hitler and the Nazis was a unique circumstance where war was not the worst of the possible evils; he called his position relative pacifism. H. G. Wells, who had joked after the armistice ending World War I that the British had suffered more from the war than they would have from submission to Germany, urged in 1941 a large-scale British offensive on the continent of Europe to combat Hitler and Nazism.[citation needed] Similarly Albert Einstein wrote: "I loathe all armies and any kind of violence; yet I'm firmly convinced that at present these hateful weapons offer the only effective protection."[26]