A soldier waves 21 August 1991 a Russian flag from the top of his News Photo - Getty Images

A soldier waves 21 August 1991 a Russian flag from the top of his tank as armoured units leave their positions in Moscow following the collapse of the military coup against president Gorbatchev. Coup Get premium, high resolution news photos at Getty Images

656 Soviet Soldiers 1991 Stock Photos, High-Res Pictures, and Images - Getty Images

656 Soviet Soldiers 1991 Stock Photos, High-Res Pictures, and Images - Getty Images

21,778 Russia Flag Stock Photos, High-Res Pictures, and Images - Getty Images

21,778 Russia Flag Stock Photos, High-Res Pictures, and Images - Getty Images

1,149 Russian Flag Waving Stock Photos, High-Res Pictures, and Images - Getty Images

1,149 Russian Flag Waving Stock Photos, High-Res Pictures, and Images - Getty Images

1,012 Soviet Soldiers 1991 Stock Photos, High-Res Pictures, and Images - Getty Images

Russian recollections: Don't ignore lessons from history - BBC News

Ukraine-Russia war - live: Putin pushes more soldiers to frontline despite failing offensive

A timeline of Ukraine's history : NPR

21,778 Russia Flag Stock Photos, High-Res Pictures, and Images - Getty Images

1,149 Russian Flag Waving Stock Photos, High-Res Pictures, and Images - Getty Images

Saddam Hussein fell. Then violence in Iraq spiralled – Middle East Monitor