Or, if you're the IDF, and the bunker is filled with neutral UN Observers monitoring for war crimes, you also send in a laser-guided bunker-busting airstrike. Then you insist it was an "accident" while refusing to cooperate with the subsequent investigations.
https://www.rcinet.ca/en/2015/07/24/history-july-25th-2006-m...
Of note, just days before the strike, one of the Observers sent an unencrypted email home to his wife noting that he was observing Israeli war crimes and would be reporting them.
https://www.cbc.ca/news/canada/ottawa/un-officer-reported-is...
"When in doubt, send in an airstrike."