where high stakes car games are under way. The u.S. Placed an unmistakable signal to iran. Abc's nick schriffen tells about about it. Nic. Reporter: Diane, we're sailing on the nuclear powered uss... See More
where high stakes car games are under way. The u.S. Placed an unmistakable signal to iran. Abc's nick schriffen tells about about it. Nic. Reporter: Diane, we're sailing on the nuclear powered uss eisenhower, and we're only about 50 miles from iran. Never before has the u.S. Flexed so much muscle so close to iran. More jets, ships and nations taking part than ever before. The u.S. Has sent two aircraft carriers into this region and each one has more than 40 of these -- these are f-18 fighter jets that could reach thousands of miles into iranian air space. To give you a sense of how big this buildup is, each of these carriers has more firepower than the entire iranian air force. It's a blunt warning to iran, don't follow through on a threat to close the strait of hormuz, where one-fifth of all the world's oil passes. If israel attacks iran's nuclear sites, iran promises to fill these waters with boats packed with explosives and mine the seabed. The u.S. Hopes tensions calm but desirable thinks iran is six months what a from a nuclear weapon. This international show of force is meant to reassure israel and convince iran not to try anything even it is attacked. As you can see, I can do a lot of damage with the airplanes that are onboard, also the weapons that are in the strike group. But also, I can be a stabilizing influence. Reporter: And after this exercise is over all these troops, all these additional assets will stay in the region. A reminder to iran that the u.S. Can act, just a few miles from
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