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Israel's Defense Minister Ehud Barak has approved in principle the purchase of 20 US-built radar-evading stealth fighters.
The jets are worth a total of 2.75 billion US dollars.
The F-35 warplanes are expected to be delivered between 2015 to 2017. Israeli leaders suggest the planes would not be used for any preventive action, but rather to bolster the country's deterrence.