The country's Prime Minister Bejamin Netanyahu confirmed the IDF had entered Gaza saying Israel was in a “fight for our existence”. Israeli troops and tanks are understood to be continuing to operate inside the Gaza Strip. Hamas' mysterious spokesman Abu Obaideh - who was this week unmasked by Israel - issued a new taunt ahead another potential night of strikes. Israel has staged three consecutive nights of raids -with the largest coming last night as tanks and troops crossed into Gaza. “Our fight inside the Gaza Strip will be long and difficult,” he said.