An emerging U.S. plan for deterring attacks on tankers that Washington blames on Iran calls for ships from Arab, Asian and other foreign nations to stand watch in the Persian Gulf and the Gulf of Oman while maritime patrol planes fly overhead, U.S. officials said.

The operation as envisioned would be commanded not by the U.S., but by a U.S. ally, the officials said. The U.S. military likely would contribute aircraft as well as ships and would organize the communications to tie the multinational force together, they added.

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