US President Barack Obama on Friday signed a bill passed by Congress designed to increase security ties with Israel, CNN reported. In signing the measure Friday, Obama spoke of the "unshakeable commitment" of his government to Israel's security and announced a previously authorized $70 million in US funding for Israel's Iron Dome missile defense system. White House spokesman Jay Carn said Obama directed the Iron Dome funding in May and the money was transferred "in recent days," leading to the announcement Friday in conjunction with the signing of the bill. "This is a program that has been critical in terms of providing security and safety for Israeli families," Obama said of the Iron Dome system. "It is a program that has been tested and has prevented missile strikes inside of Israel. And it is testimony of the leadership of folks sitting here that we are going to be able to lock in that funding to make sure that program continues and that we are standing by our friends In Israel when it comes to these kinds of attacks." He also announced that Defense Secretary Leon Panetta would travel to Israel soon to discuss additional ways the two nations can cooperate on defense and security issues.