Two Ukrainian feminist activists took a chainsaw to the broken chair in Geneva on Friday, damaging the anti-landmine landmark.
The women, from the group Femen, were topless with anti UN and Russian slogans painted on their chests.
The two, Yana Fedorets and Diana Ushkalenko, say the UN is at fault for the situation in Ukraine as it has allowed Russia to take the place of the former Soviet Union at the UN. They say that was illegal.
Geneva police say the two activists and two others from the group were arrested.