Story highlights
- The move comes days after North Korea showed big leap forward in its missile program
- The USS Carl Vinson arrived at Korean Peninsula in April as a show of force
Washington (CNN)The Navy aircraft carrier USS Ronald Reagan is now conducting training off the coast of Japan and is expected in the coming days to join the USS Carl Vinson in the region, putting two carriers in the vicinity of the Korean Peninsula, two US officials tell CNN.
The move comes just days after North Korea demonstrated a significant leap forward in their missile program after launching a projectile that achieved "successful" controlled reentry into the Earth's lower atmosphere rather than falling back to the surface, according to a preliminary US intelligence analysis,
The USS Reagan was put out to sea Tuesday after completing a maintenance period and sea trials in its home port of Yokosuka, Japan, according to the Navy.
US warships sent to Korea: What to know 01:32
"Coming out of a long in-port maintenance period we have to ensure that Ronald Reagan and the remainder of the strike group are integrated properly as we move forward," Rear Adm. Charles Williams said in a press release.
Once it arrives in the region, the carrier will conduct a variety of training exercises but primarily focus on certifying its ability to safely launch and recover aircraft, the Navy said. Defense officials would not comment on long the two carriers would be there, but ultimately the Reagan is expected to replace the Vinson in the region once its deployment ends.
The 1,092-foot Reagan, a Nimitz-class carrier, has a crew of 4,539 and is equipped with roughly 60 aircraft, according to the Navy. It was commissioned in 2003 and cost about $8.5 billion.
The USS Carl Vinson, also a Nimitz-class carrier, arrived at the Korean Peninsula late last month as a show of force in advance of a long-anticipated sixth nuclear test from the North Korean government.
Photos: US aircraft carriers
Sailors spell out #USA with the American flag on the flight deck of the Nimitz-class aircraft carrier USS Theodore Roosevelt in the Persian Gulf in late June 2015. When the Roosevelt leaves the Gulf sometime in October, the U.S. Navy will be without a carrier in the important region for two months.
Hide Caption
1 of 31
Photos: US aircraft carriers
A MV-22B Osprey, from Marine Operational Test and Evaluation Squadron 1, lifts off from the flight deck of the aircraft carrier USS Carl Vinson (CVN 70) on June 12, 2016. Click through the gallery to see other US aircraft carriers.
Hide Caption
2 of 31
Photos: US aircraft carriers
Tug boats maneuver the aircraft carrier Pre-Commissioning Unit Gerald R. Ford (CVN 78) into the James River during the ship's turn ship evolution on June 11, 2016. This is a major milestone that brings the country's newest aircraft carrier another step closer to delivery and commissioning later this year.
Hide Caption
3 of 31
Photos: US aircraft carriers
The Nimitz-class aircraft carrier USS Ronald Reagan (CVN 76) arrives at the U.S. Navy base in Yokosuka, a suburb of Tokyo, Japan, on October 1, 2015. The Reagan is the fifth U.S. carrier forward deployed to Japan following USS George Washington (CVN 73), USS Kitty Hawk (CV 63), USS Independence (CV 62) and USS Midway (CV 41), according to the Navy.
Hide Caption
4 of 31
Photos: US aircraft carriers
The aircraft carrier USS Dwight D. Eisenhower (CVN 69) (Ike) transits through the Strait of Gibraltar into the Mediterranean Sea on June 13, 2016. Ike, the flagship of the Eisenhower Carrier Strike Group, is conducting naval operations in the U.S. 6th Fleet area of operations. It could be used to support operations against ISIS in the Mideast.
Hide Caption
5 of 31
Photos: US aircraft carriers
A rainbow forms over the bow of the Nimitz-class aircraft carrier USS John C. Stennis as the ship steams in the Pacific Ocean on February 3, 2015.
Hide Caption
6 of 31
Photos: US aircraft carriers
U.S. aircraft carrier classes – U.S. Secretary of Defense Ash Carter (left) and Philippine Secretary of National Defense Voltaire Gazmin shake hands on a Marine Corps V-22 Osprey as they depart the the aircraft carrier USS John C. Stennis (CVN 74) after touring the aircraft carrier as it sailed in the South China Sea on April 15, 2016.
Hide Caption
7 of 31
Photos: US aircraft carriers
A photo illustration of the U.S. Navy's Gerald R. Ford-class aircraft carrier USS John F. Kennedy (CVN-79). The ship's keel laying ceremony was celebrated Saturday, August 22, 2015, in Newport News, Virginia. The ship is expected to replace the USS Nimitz (CVN-68), scheduled for inactivation in 2025, in the Navy fleet. The newest Kennedy will be the second carrier of that name. The first John F. Kennedy (CVA-67) was the last conventionally powered carrier. It was decommissioned in 2007.
Hide Caption
8 of 31
Photos: US aircraft carriers
The aircraft carrier USS Harry S. Truman (CVN 75) passes under the Friendship Bridge while transiting the Suez Canal on Dec. 14, 2015. The ship is conducting operations in the Persian Gulf, where Iran claims to have taken footage of the carrier using a drone. Click through the gallery for more images of U.S. Navy aircraft carriers.
Hide Caption
9 of 31
Photos: US aircraft carriers
Aviation Structural Mechanic Airman V. Sek, assigned to the "Jolly Rogers" of Strike Fighter Squadron (VFA) 103, applies a Christmas decal to an F/A-18F Super Hornet in the hangar bay of the Nimitz-class aircraft carrier USS Harry S. Truman in December 2015.
Hide Caption
10 of 31
Photos: US aircraft carriers
The Nimitz-class aircraft carrier USS George Washington (CVN 73) is seen from inside its sister ship, the USS Ronald Reagan (CVN 76), on August 7 off the coast of California as the two ships prepare for a "hull swap." Over 10 days in San Diego, much of the crew of each ship will transfer to the other. When completed, the Reagan will head to forward deployment in Japan, where the Washington had been. The Washington will head to Newport News, Virginia, for an overhaul.
Hide Caption
11 of 31
Photos: US aircraft carriers
Three Nimitz-class aircraft carriers USS Carl Vinson (CVN 70), top, USS Ronald Reagan (CVN 76), center, and USS John C. Stennis (CVN 74) are pierside at Naval Air Station North Island near San Diego on June 12, 2015. The Vinson has just recently returned from a 10-month deployment. The Reagan is preparing for a move to Japan later this year and the Stennis was making a port call after steaming from its homeport of Bremerton, Washington.
Hide Caption
12 of 31
Photos: US aircraft carriers
Sailors test the countermeasure washdown system on the flight deck of the Nimitz-class aircraft carrier USS Dwight D. Eisenhower (CVN 69) during sea trials prior to returning to its homeport at Naval Station Norfolk in late August 2015.
Hide Caption
13 of 31
Photos: US aircraft carriers
The aircraft carrier USS Theodore Roosevelt departs Naval Station Norfolk, Virginia, on Wednesday, March 11, for a scheduled deployment. The Nimitz-class carrier's departure was delayed for two days after marine growth clogged sea water intakes. Divers went into the 36-degree water to clean out the intakes and allow the ship to get under way. The cold water created a fog that made it seem the ship was in a cloud.
Hide Caption
14 of 31
Photos: US aircraft carriers
The USS Abraham Lincoln, a Nimitz-class aircraft carrier, is seen near the coast of Indonesia in 2005. The carrier recently received a new anchor from the decommissioned USS Enterprise.
Hide Caption
15 of 31
Photos: US aircraft carriers
Lightning strikes over the flight deck of the USS John C. Stennis, another Nimitz-class aircraft carrier, as the ship moves through the Persian Gulf in 2007. All of the Navy's 10 active aircraft carriers are from the Nimitz class, which started in 1975 with the commission of the USS Nimitz.
Hide Caption
16 of 31
Photos: US aircraft carriers
The USS Ranger (CV-61) arrives at Pearl Harbor, Hawaii, in 1993. The Forrestal-class carrier, which featured in the movie "Top Gun," is to be scrapped this year.
Hide Caption
17 of 31
Photos: US aircraft carriers
In this photo released by the U.S. Navy, a tugboat works alongside the decommissioned aircraft carrier USS Saratoga on Thursday, August 21, in Newport, Rhode Island. The Navy has paid a Texas recycling company a penny to dispose of the Saratoga, part of the Forrestal-class of "supercarrier" vessels built for the Atomic Age. The carrier was decommissioned 20 years ago.
Hide Caption
18 of 31
Photos: US aircraft carriers
Aircrew members are lifted from the flight deck of the USS John F. Kennedy during an exercise in 2002. The ship, which was decommissioned in 2007, was the only member of its class.
Hide Caption
19 of 31
Photos: US aircraft carriers
An F/A-18 Hornet launches from the USS Enterprise in 2007. The Enterprise, the world's first nuclear-powered aircraft carrier, was decommissioned in 2012. Like the John F. Kennedy, it was the only ship built in its class.
Hide Caption
20 of 31
Photos: US aircraft carriers
The Kitty Hawk class was named for the USS Kitty Hawk, seen here departing Yokosuka, Japan, in 2008. At that time, the Kitty Hawk was the oldest carrier in the U.S. Navy and the only conventional-power aircraft carrier still in commission. It was decommissioned in 2009.
Hide Caption
21 of 31
Photos: US aircraft carriers
The USS Independence, a member of the Forrestal class that preceded the Kitty Hawk class, heads up the East River in New York in 1959.
Hide Caption
22 of 31
Photos: US aircraft carriers
Helicopters sit on the flight deck of the USS Saipan during the mid-1950s. The ship was one of two members of the Saipan class.
Hide Caption
23 of 31
Photos: US aircraft carriers
The USS Midway, namesake of the Midway class of aircraft carriers, floats off the coast of North Vietnam in 1972. It was named after the Battle of Midway, when U.S. forces held back a Japanese attempt to take the Pacific atoll in 1942.
Hide Caption
24 of 31
Photos: US aircraft carriers
The USS Princeton, part of the Independence class, moves off the coast of Seattle in 1944.
Hide Caption
25 of 31
Photos: US aircraft carriers
The Essex-class USS Franklin burns after being hit by a Japanese dive bomber in 1945. The ship was named after Benjamin Franklin and nicknamed "Big Ben."
Hide Caption
26 of 31
Photos: US aircraft carriers
The USS Wasp burns in the Coral Sea after being struck by three torpedoes from a Japanese submarine in 1942. The ship, the only one of its class, would ultimately sink because of the damage.
Hide Caption
27 of 31
Photos: US aircraft carriers
B-25 bombers sit on the deck of the USS Hornet in the Pacific Ocean in 1942. The Hornet, one of three carriers in the Yorktown class, was the ship that launched the bombers flown by Air Force Lt. Col. James Doolittle and his pilots during an air raid in Tokyo four months after the attack on Pearl Harbor. It also was involved in the Battle of Midway.
Hide Caption
28 of 31
Photos: US aircraft carriers
Navy personnel work on board the USS Ranger circa 1942. The Ranger was the first ship to be designed and built specifically as an aircraft carrier. It was the only ship in its class.
Hide Caption
29 of 31
Photos: US aircraft carriers
There have actually been two aircraft carriers named after the Revolutionary War's Battle of Saratoga. The first USS Saratoga, seen here moving toward San Francisco's Golden Gate Bridge in 1945, was one of two members of the Lexington class of aircraft carriers.
Hide Caption
30 of 31
Photos: US aircraft carriers
The USS Langley, the Navy's first aircraft carrier and sole member of its class, steams off the coast of Baltimore in 1924.
Hide Caption
31 of 31
While North Korea has yet to carry out that nuclear test, it did launch a Hwasong-12 missile that achieved an altitude of more than 2,100 kilometers (1,300 miles) on Sunday, according to the North Koreans, the highest launch to date in their missile test program.
Pyongyang said the test was "aimed at verifying the tactical and technological specifications of the newly developed ballistic rocket capable of carrying a large-size heavy nuclear warhead," according to the state-run Korean Central News Agency.
After the test, North Korea warned the United States not to provoke it, saying the "US mainland and Pacific operations" are within range of North Korean missiles.
N. Korea to US: Do not provoke us 01:30
KCNA said the test showed North Korea "has all powerful means for retaliatory strike" should Washington take any military action to stop its nuclear weapons program.
Tensions have rapidly escalated on the Korean Peninsula since US President Donald Trump declared in early April he would be prepared to act "unilaterally" against Pyongyang -- and North Korea has engaged in a series of military drills and test launches.
China, North Korea's longtime ally, has called on Pyongyang to stop its nuclear program while calling on the US to stop military drills and deployments in the region, which North Korea sees as threatening its security.
Russian President Vladimir Putin weighed in after Sunday's missile test, saying that while Moscow did not support Pyongyang's nuclear ambitions, "intimidating (North Korea) is unacceptable."
Putin's comments drew criticism from US Ambassador to the United Nations Nikki Haley, who said Russia had it "all wrong."
"What about North Korea intimidating us?" Haley said.
Analysts said Pyongyang's latest missile test does give Washington something to worry about.
They said the test showed the missile could reach the US Pacific territory of Guam, home to Andersen Air Force Base, through which the US rotates heavy bombers, including B-1s, B-2s and B-52s.
While North Korea's arsenal of missiles is becoming clearer, there is less certainty about how developed its nuclear program is.
To actually deliver such a missile, Pyongyang would have to have advanced technology in both miniaturizing its nuclear weapons as well as in protecting a nuclear warhead from being destroyed upon reentry into the Earth's atmosphere.