The United States and Israel tend to avoid flying over Iranian airspace so as not to expose themselves to antiaircraft fire, because Iran’s capabilities have been bolstered by Russia since the June war. The US and Israel prefer to fire missiles from jets hovering in neighboring air spaces. The United States claims that the jets were shot down by friendly fire. Either way, two days into the war it appears the US has lost more air assets than they have since its war against Vietnam, fifty years ago. Iran has launched waves of ballistic missiles at Israel. While Israeli military censorship is effective at obscuring the damage caused by the strikes, there have been more reports of casualties than Tel Aviv claims.