Maitla was appointed Hauptsturmführer and in April 1944 he was commander of the 1st Battalion of the 45th Regiment of the newly formed 20th Waffen Grenadier Division of the SS (1st Estonian). In the same year, Maitla with his battalion succeeded in stopping the Red Army offensive at Auvere and received the Iron Cross I class. On 29 July, he and his battalion led a counter-attack at the Battle of Tannenberg Line for which he was awarded the Knights Cross on 23 August.