Russian Communist Party leader Gennady Zyuganov delivers a speech during a rally to mark 30 years since the Russian constitutional crisis, in Moscow, Russia. A Russian constitutional crisis came to a dramatic climax 30 years ago, on October 4, 1993, when President Boris Yeltsin ordered the army to shell Moscow's parliament building. A stand-off between then President Boris Yeltsin and the Supreme Soviet legislative body led to fighting around Moscow's TV tower and the White House government building.