Bruce Dickinson said the most decadent moment of his life came during Iron Maiden’s tour of the Soviet Union. The road trip started out in August 1984, five years before the Berlin Wall came down, which marked the end of the U.S.S.R. While Maiden were the first Western band to take a full production show through the Iron Curtain, they refused to take credit for encouraging political change. “We didn’t have to work too hard to build [a] bridge,” Dickinson told the Independent in a new interview. “We just had to build the other half to go and meet them halfway. Afterwards, when they took their d…