Israeli Prime Minister Benjamin Netanyahu addresses the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

The Israeli Air Force helicopters are seen during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

A batch of pilots march during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

An Israeli C-130 Hercules (L) and a Super Hercules C-130J perform during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

A batch of pilots march during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

An Israeli F-15 I jet fighter is ready to land after its performance during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

The Israeli Air Force aircrafts perform during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

The 168th batch of pilots salute during their graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

The 168th batch of pilots attend their graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

An Israeli C-130 Hercules (L) and a Super Hercules C-130J perform during the 168th class graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)

Relatives and friends of the 168th batch of pilots attend their graduation at the Hatzerim Air Base near Be'er Sheva, southern Israel, on June 26, 2014. The Israeli Air Force welcomed into its ranks the 168th batch of pilots, with the country's political and military leaderships on hand to congratulate here on Thursday. (Xinhua/Li Rui)