I find it unlikely that this is your answer to when you first decided to hate Israel; rather, you've posted this as a kind of inflammatory war ****.
Nonetheless, the answer to this is
here. The girls and their families had just emerged from a shelter after five days of being bombarded by Hezbollah. The writing on the bombs, "To Nasrallah with Love, from Israel and Danielle" was penned by adults; while a dozen photographers surrounded them, the adults handed the kids the pens to draw Israeli flags on the shells.
As hatreds go, this one is a mere dribble compared to the gushings seen every day in the Muslim World, isn't it? The messages are personalized, not race-based, and were incubated via the harsh tutelage of Hezbollah's bombs, kidnappings, and murderous propaganda.
Who is really at fault here for this act and the casualties of Lebanese civilians that occurred as a result of Israeli efforts to eliminate the bombardments? More importantly to this forum, why didn't the Pakistanis here do the research themselves to discover the truth, rather than seizing an inflammatory and incorrect narrative?