The Pentagon said it could not confirm the origin or type of munition used in an airstrike on a tent camp in Rafah that killed 45 people.Israel’s Rafah offensive stirred renewed outrage after an airstrike on May 26 ignited a blaze in a tent camp in a western district. Global leaders voiced horror at the fire in a designated “humanitarian zone” of Rafah where displaced Palestinians had sought shelter.Meanwhile, the White House said the deaths in Rafah didn’t constitute a major ground operation that crossed any US red lines. The May 26 strike tested US President Joe Biden’s promise to withhold weapons from Israel if a major invasion of Rafah put displaced persons there at risk.