A timeline from the Institute for Middle East Understanding of events leading up to yesterday's Israeli airstrikes and rocket fire from Gaza:
THURSDAY, NOVEMBER 8
Following a two-week lull in violence, Israeli soldiers invade Gaza. In the resulting exchange of gunfire with Palestinian fighters, a 12-year-old boy is killed by an Israeli bullet while he plays soccer.
Shortly afterwards, Palestinian fighters blow up a tunnel along the Gaza-Israel frontier, injuring one Israeli soldier.