Map Error Blamed for Israeli Strike on UN Observers

CBC News: “An incorrect map and communications failure led to an Israeli air strike on a UN observer post that killed four peacekeepers. … According to [the IDF’s] confidential report, Israeli artillery were using a hand-drawn map that identified the clearly marked UN post in the Khiyam area of southern Lebanon as a base for the militant organization Hezbollah.”

(Artillery units use hand-drawn maps? What’s UTM for, then?)