INDIANAPOLIS (AP) – A military plane carrying enough specialty infant formula for more than half a million baby bottles arrived Sunday in Indianapolis. It’s the first of several flights expected from Europe aimed at relieving a shortage that has sent parents scrambling to find enough to feed their children. President Joe Biden authorized the use of Air Force planes for the effort, dubbed “Operation Fly Formula,” because no commercial flights were available. The nationwide shortage of formula follows the closure of the largest domestic manufacturing plant in Michigan in February due to safety issues.