The U.S.S. Nimitz was deployed May 12 to the waters off the Korean peninsula to conduct bilateral training with the South Korean Navy over the next two days.
But the Nimitz, which was commissioned in 1975, is also meant to intimidate the autocratic, repressive North Korean regime.
Indeed, Kim Jong-Un reacted venomously to the carrier's deployment, threatening to "throw [it] into the bottom of the sea." 
Though much of world listens when bluster comes out of the Hermit Kingdom, rest assured the thousands of souls aboard the Nimitz hear only the steady hum of her inner workings. No doubt their focus is the mission.