If the harassment exercise had actually been an attack, the Navy ships could have been seriously damaged or even sunk. While the fast attack boats attacking the much larger Navy vessels are hundreds of times smaller, they can mount rocket launchers capable of doing considerable damage. But a far bigger threat comes from having these fast attack boats becoming guided bombs, remotely controlled or otherwise, packed with many hundreds of pounds of high explosives capable of ripping massive holes in the thin, unarmored hulls of U.S. warships—holes large enough to put the ships at risk of sinking.
Allowing Iran free rein to regularly come close enough to our ships to guarantee successful attacks sets a terrible precedent and increases the chances that such an attack will occur. On the other hand, making it clear to Iran that our Navy ship captains will be operating under ROEs that allow them to defend security zones sufficiently sized to give them a good chance of defending themselves reduces the chances of a successful attack by Iran and thereby reduces Iran’s temptation to attempt one.
Along with putting more effective ROEs into place, it‘ll also be extremely important to let U.S. Navy ship commanders know that U.S. civilian and military leaders will have their backs and won’t be Monday morning quarterbacking with the benefit of 20/20 hindsight. They need to know that they’ll be given every possible benefit of the doubt after they make a decision to use lethal force to defend their ships.
But even if U.S. Navy captains are given the freedom to defend their ships, doing so is much harder than talking about it, especially when transiting the Strait of Hormuz, which narrows to 21 miles at one point and has territorial waters that are dominated by Iran or Oman. Iran also controls seven out of the eight islands located in the Strait of Hormuz. And even the Persian Gulf, being only 210 miles at its widest, is relatively confining. So this is a particularly tough area for any Navy having to deal with a hostile foreign power such as Iran.
However, a lack of screening vessels doesn’t prevent the United States from having ROEs in place that maximize our ships’ chances of successfully defending themselves using the weapon systems at their disposal. And these new ROEs should be rolled out ASAP as rising tensions with Iran, China, and Russia make attacking U.S. warships ever more tempting for Iran.