In the week leading up to the Iranian attack Friday that killed two U.S. soldiers and left one service member missing in Jordan, Iran carried out three other strikes against U.S. forces in the country.

Those attacks injured dozens of U.S. service members and damaged several helicopters, according to several U.S. officials, who spoke on the condition of anonymity to discuss operational matters.

But the Pentagon did not disclose the earlier strikes, nor the casualties and damage they inflicted.

The episode is the latest example during the Iran conflict of the tension between what the Pentagon says is the need for operational security and the government’s obligation to inform the public about the conduct of the war.