Howdy Ravi; Absolute numbers of civilian casualties is irrelevant. The important thing is intent. In general, the IDF tries to minimize "collateral damage" in taking a military objective whereas the Palestinian militant/terrorist groups try to maximize civilian casualties with no "anticipated military advantage" to be gained discernable. I have "blood on my hands" because I killed 5 people for sure in Vietnam. (There may have been more, but it's hard to tell who killed who during a firefight at night.) Of the five, two were definitely enemy soldiers because they were armed with AK-47s and were shooting at me and my buddies. The other three I'm not so sure of. My company had received fire from a wood line and had suffered 2 KIAs and 5 WIAs. Some of the fire had come from a hootch so I low-crawled up to it and set it on fire. I could hear whispering so I knew that somebody was alive inside. Honest to God, I thought that they would come out with their hands up. They didn't and died.
In Bahrain, 2 police officers killed, 6 wounded in bombing (AP)
from the article: Abducted soldier's mother: Politicians seeking clout off our sons' backs