Israel at war after deadly Hamas raid, former national security expert explains | LiveNOW from FOX

Chuck Freilich a former deputy national security adviser to Israel joins FOX's Josh Breslow to break down the latest as tensions rise between Israel and Hamas. Israel declared war after Hamas conducted a surprise attack during a major Jewish holiday. This is the first formal declaration of war for Israel since 1973. More than 700 people were injured in Israel, with reports of 300 killed in Gazza, according to officials.