Nigeria, Aug. 23 -- It appears the re-opening of the Strait of Hormuz, through which one-fifth of world oil passed before the US-Iran war, was one of the most urgent tasks of humanity. The United States has, for six months, been unable to re-open this vital artery, which handled 100-140 commercial ships daily. Then, like magic, Oman and Iran reached a consensus to reopen the strait. Oman, a tiny country of 5.4 million people spread over a 309,500 square kilometre area, is one of the closest allies of the US. It was the first Arab nation in the Arabian Peninsula to sign a trade and diplomatic agreement with the US. That was 193 years ago. In the on-going US-Iran conflict, Oman has suffered many Iranian strikes, including on the ports of Du...