The United States’ air defenses are struggling to defend against attacks from Iran. The Pentagon reported that Tehran’s retaliatory strikes on a military base in Jordan killed two American service members, as air defenses failed to keep up. The US is becoming increasingly concerned that the Iranian military is improving its efficacy at penetrating its air defenses in the Middle East. Several media outlets have reported, citing anonymous officials, that air defenses appear to be struggling to keep up. This comes on the heels of a deadly missile and drone strike on a military base in Jordan on Friday, which…