Yanir Yagna, Haaretz Correspondent, and Haaretz Service: For the first time, Gaza militants fire phosphorus shell at Israel
Talkback
Title:9 Jon: Other option IDF goes door to door
Name:Tupac
City: NYState: USA
But that will mean heavy IDF losses just like it did when it finally sent troops into Lebanon.

So to save IDF lives they shell and bomb heavily populated areas. I guess IDF is no different then any other invading military.