It was the second of two marches in Kiev on Monday, a national holiday that has been designated as "Defenders Day".
October 14 also marks the anniversary of the foundation of the Ukrainian Insurgent Army (UPA), a group of nationalists who fought against Soviet troops in World War II alongside Nazi forces, and are accused of slaughtering Poles and Jews.
Nationalist forces traditionally hold marches on this day, with many former fighters in the eastern
Ukraine conflict among the demonstrators, as well as supporters of nationalist party Svoboda.