The squares indicate the main targets of Israel's ground offensive in the Gaza stripFrom The Daily Mail:
Israel dramatically raised the stakes in its offensive against Hamas last night by sending tanks into the Gaza Strip.
Backed by combat helicopters and artillery fire from self-propelled howitzers, the soldiers poured over the border at 6pm British time and encountered heavy resistance.
Parachute flares lit the way for the troops and Merkava tanks as they rolled through the perimeter fence around Gaza, while attack helicopters flew overhead.
Military commanders said the intention was to take control of areas used by Palestinian factions to fire rockets at Israel.
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