"First of all, there are no 'red lines' for Russia. If you had asked me in January 2014 whether it was possible that Russia would commit an armed aggression against Ukraine, I would have said that it was not possible. The same goes about Crimea. There are no 'red lines' for Russia, including open war," Poroshenko said.
He also said that it was not a frozen conflict in Donbas, but a war.
"It's not a frozen conflict. It's a hot war. Ukraine is fighting for peace and return of Ukrainian sovereignty over the occupied territories. Nothing more," Poroshenko added.
According to him, there are three important documents - the Minsk agreements of September 5, 2014 and September 19, as well as the document dated February 12, 2015.
"This complex of measures includes the withdrawal of foreign troops and military equipment from the Ukrainian territory. Now, in the occupied territories, there are 700 Russian tanks, more than a thousand artillery systems, more than 300 MLRS. This is more than that of German Bundeswehr. This is a real aggression against a sovereign and independent state of Ukraine," Poroshenko said.