Ukrainian forces used Donetsk airport to correct their artillery fire on the city of Donetsk from artillery stations in towns of Avdeevka and Peski. Self-defense forces of Donetsk made it their goal to push occupying Ukrainian army from the airport to stop shelling of Donetsk. Almost all airport is under the control of self-defense forces now.
Ukrainian soldiers marked dates and military units that took part in attacking Donetsk airport. You can clearly see radical racist Skin Heads sign on the flag.