Analyst's note:  Supreme Leader Ayatollah Ali Khamenei will determine just how they will interact with their show of force toward U.S. Navy vessels operating in the area.  As Iran threatens to close off the Strait of Hormuz if the U.S. or Israel moved against its nuclear facilities, Iran's navy begins a 10-day drill in international waters, while official denies report that the operation will close this key oil route where approx. 1/3 of the world's oil tanker traffic must navigate.  You will want to read the full original article.