Technology and built the drones. Why do you guys think Israel is so much interested in Iran, it is not the Nukes or oil, it is the knowledge of how do things. Just look at the Persian rug, do you see Israeli rugs like that?
Russia: U.S. plan to provide air cover for Syrian rebels undermines Damascus fight on ISIS (Reuters)
from the article: Israel Navy's first unmanned surface vehicle keeps an eye on the sea