Luhansk People's Republic leader Igor Plotnitsky invited Petro Poroshenko to single combat "on the example of ancient Slavic chieftains and glorious Cossack atamans." Ukraine's foreign ministry said Plotnitsky was "only worthy of a duel in Ukrainian court."
Russia's War Against Ukraine
BuzzFeed: Rebel leader challenges Poroshenko to a duel
(From left to right) representatives of self proclamed \"People Republic of Donetsk\", Prime Minister Alexander Zakharchenko (L), Donetsk rebel leader Andrei Purgin (2nd L) and \"People Republic of Luhansk\" Igor Plotnitsky (2nd R) attend talks in Minsk in September.