Question: What was the name of the military operation where on June 26, 1941, the leader of the 2nd tank division was killed?
Sentence (from "Battle of Raseiniai"): The fighting around Raseiniai was one of the main battles of the initial phase of Operation Barbarossa, referred to in Soviet historiography as the Border Defensive Battles (22–27 June 1941) and formed part of the larger Soviet Baltic Strategic Defensive Operation.
Relevant evidence: No