President of Ukraine Petro Poroshenko said meeting with participants of the all-Ukrainian rally Children unite Ukraine held in Kyiv today.
The president also recalled that a great number of children were killed in Syria where the Russian troops are conducting a military operation.
"It is absolutely unacceptable when children get used to hear sounds of Grad rockets. They have already learned to distinguish a 120-mm mortar shelling from a heavy 150-mm howitzer one, and how to survive a bombardment. It is a common knowledge among the children of Avdiivka," Poroshenko said.