TEL AVIV — Israeli pilots are expected to arrive at Eglin Air Force Base, Fla., for training on the F-35 next year, while delivery of the first aircraft to Israel is expected a year later, in 2015. Israel placed an order for 20 F-35s in 2010, becoming one of the first international customers to formally order the fifth-generation fighter.

PARIS — The biennial Paris air show in June highlighted numerous innovations in unmanned aerial vehicles (UAV), which are adding diverse capabilities to increase their tactical and strategic value. Israeli manufacturers unveiled a number of new UAVs at Paris, including several electrically powered systems. This fast-growing class increasingly combines ease of handling and economy with extended range, advanced-technology payloads and efficient propulsion systems.

Industry observers often are struck by the rate at which new unmanned aerial vehicles (UAV) of all sizes are making their debut around the world. Even more striking are the technical advances to increase UAVs' tactical and strategic value. Among the most innovative are Israeli manufacturers pursuing electrically powered systems that combine ease of handling and economy with extended range, as well as advanced-technology payloads and propulsion systems.