Question: What is Kang seeking to use against the country of citizenship of the only member of the Apollo 11 who did not walk on the moon?

full_context: Document 1: Moon landing: Mission name Lunar lander Lunar landing date Lunar liftoff date Lunar landing site Duration on lunar surface Crew Number of EVAs Total EVA Time (HH: MM) Apollo 11 Eagle 20 July 1969 21 July 1969 Sea of Tranquility 21: 31 Neil Armstrong, Edwin ``Buzz ''Aldrin 2: 31 Apollo 12 Intrepid 19 November 1969 21 November 1969 Ocean of Storms 1 - day, 7: 31 Charles`` Pete'' Conrad, Alan Bean 7: 45 Apollo 14 Antares 5 February 1971 6 February 1971 Fra Mauro 1 - day, 9: 30 Alan B. Shepard, Edgar Mitchell 9: 21 Apollo 15 Falcon 30 July 1971 2 August 1971 Hadley Rille 2 days, 18: 55 David Scott, James Irwin 18: 33 Apollo 16 Orion 21 April 1972 24 April 1972 Descartes Highlands 2 days, 23: 02 John Young, Charles Duke 20: 14 Apollo 17 Challenger 11 December 1972 14 December 1972 Taurus -- Littrow 3 days, 2: 59 Eugene Cernan, Harrison ``Jack ''Schmitt 22: 04
Document 2: Olympus Has Fallen: Authorized to proceed, Banning's first act is to save Connor, whom Kang plans to use to force Asher to reveal his Cerberus code. Banning finds Connor hiding in the walls, thanks to the training he had given him, and sneaks the boy to safety. Banning begins reconnaissance and reduces the terrorists' numbers. Banning kills Forbes, first convincing the traitor to report to Kang that Banning is dead. Meanwhile, Army Chief of Staff General Edward Clegg (Robert Forster) convinces Trumbull to order an aerial SEAL assault on the White House. Kang discovers the assault force and activates the Hydra 6, an advanced anti-aircraft system built by the military. Discovering the system, Banning advises Trumbull and Clegg to abort the mission, but the new weapon system annihilates most of the assault force before Banning can stop it. Kang retaliates for the infiltration by killing Vice President Charlie Rodriguez (Phil Austin).
Document 3: Buzz Aldrin: Buzz Aldrin (born Edwin Eugene Aldrin Jr.; January 20, 1930) is an American engineer and former astronaut. As the Lunar Module Pilot on Apollo 11, he was one of the first two humans to land on the Moon, and the second person to walk on it. He set foot on the Moon at 03: 15: 16 on July 21, 1969 (UTC), following mission commander Neil Armstrong. He is a former U.S. Air Force officer with the Command Pilot rating. He also went into orbit on the Gemini 12 mission, finally achieving the goals for EVA (space - walk work) that paved the way to the Moon and success for the Gemini program; he spent over five hours on EVA on that mission.
Document 4: Gene Cernan: Eugene Andrew Cernan (/ ˈsər. nən /; March 14, 1934 -- January 16, 2017) was an American astronaut, naval aviator, electrical engineer, aeronautical engineer, and fighter pilot. During the Apollo 17 mission, Cernan became the eleventh person to walk on the moon and, as he re-entered the lunar module after Harrison Schmitt on their third and final lunar excursion, is the last person to have walked on the Moon.
Document 5: Olympus Has Fallen: Kang seeks to use Asher's hostage status as leverage to force U.S. officials to withdraw the Seventh Fleet and U.S. forces from the Korean Peninsula, thus removing American opposition to a North Korean invasion of South Korea. He also seeks to destroy the American nuclear weapons stockpile by detonating them in their respective silos across the country, turning the United States into an irradiated wasteland. To accomplish this, he requires the access codes to a system called Cerberus, which are held by three top government officials, including the President, all of whom are inside the bunker. Asher orders the other two officials to reveal their codes to save their lives, certain that he will not give up his code.
Document 6: Michael Collins (astronaut): Michael Collins (born October 31, 1930) (Major General, USAF, Ret.) is an American former astronaut and test pilot. Selected as part of the third group of fourteen astronauts in 1963, he flew into space twice. His first spaceflight was on Gemini 10, in which he and Command Pilot John Young performed two rendezvous with different spacecraft and undertook two extra-vehicular activities (EVAs, also known as spacewalks). His second spaceflight was as the Command Module Pilot for Apollo 11. While he stayed in orbit around the Moon, Neil Armstrong and Buzz Aldrin left in the Lunar Module to make the first manned landing on its surface. He is one of 24 people to have flown to the Moon.
Document 7: Olympus Has Fallen: After Banning disables Kang’s communications, Kang tries to execute Secretary of Defense Ruth McMillan (Melissa Leo) outside the White House in front of the media, but Banning rescues her. With his forces dwindling, Kang fakes his and Asher's death by sacrificing several of his men and the remaining hostages. However, Banning sees through the ruse. Kang eventually cracks Asher’s code using a brute-force attack and activates Cerberus. As Kang and his remaining men attempt to escape, Banning ambushes them and kills the remaining terrorists. During the fight, Asher tries to break free from Kang's grip and is subsequently shot by him in the stomach. Banning and Kang confront each other and a climactic fight breaks out, in which Kang quickly gains the upper hand. Eventually, Banning kills Kang by stabbing him in the head with a knife and disables Cerberus with the assistance of Trumbull and his staff, with only seconds to spare.
Document 8: Korean War: Soviet generals with extensive combat experience from the Second World War were sent to North Korea as the Soviet Advisory Group. These generals completed the plans for the attack by May. The original plans called for a skirmish to be initiated in the Ongjin Peninsula on the west coast of Korea. The North Koreans would then launch a "counterattack" that would capture Seoul and encircle and destroy the South Korean army. The final stage would involve destroying South Korean government remnants, capturing the rest of South Korea, including the ports.
Document 9: List of Presidential Medal of Freedom recipients: Recipient Year Mission President Notes Edwin ``Buzz ''Aldrin 1969 Apollo 11 Astronaut Richard Nixon With Distinction Neil Armstrong 1969 Apollo 11 Astronaut Richard Nixon With Distinction Michael Collins 1969 Apollo 11 Astronaut Richard Nixon With Distinction Fred Haise 1970 Apollo 13 Astronaut Richard Nixon Jim Lovell 1970 Apollo 13 Astronaut Richard Nixon Jack Swigert 1970 Apollo 13 Astronaut Richard Nixon George Abbey 1970 Apollo 13 Mission Operations Team Richard Nixon Gerald D. Griffin 1970 Apollo 13 Mission Operations Team Richard Nixon Gene Kranz 1970 Apollo 13 Mission Operations Team Richard Nixon Glynn Lunney 1970 Apollo 13 Mission Operations Team Richard Nixon James W. McBarron II 1970 Apollo 13 Mission Operations Team Richard Nixon Edgar Mitchell 1970 Apollo 13 Mission Operations Team Richard Nixon Sigurd A Sjoberg 1970 Apollo 13 Mission Operations Team Richard Nixon Milton L. Windler 1970 Apollo 13 Mission Operations Team Richard Nixon John Glenn 2012 Mercury - Atlas 6 and STS - 95 Barack Obama Sally Ride 2013 Space Shuttle Challenger STS - 7 and STS - 41 - G Barack Obama Posthumous Katherine Johnson 2015 NASA Mathematician Barack Obama
Document 10: Moon landing: A total of twelve men have landed on the Moon. This was accomplished with two US pilot - astronauts flying a Lunar Module on each of six NASA missions across a 41 - month period starting on 20 July 1969 UTC, with Neil Armstrong and Buzz Aldrin on Apollo 11, and ending on 14 December 1972 UTC with Gene Cernan and Jack Schmitt on Apollo 17. Cernan was the last to step off the lunar surface.
Document 11: Apollo 11: Apollo 11 was the spaceflight that landed the first two humans on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20: 18 UTC. Armstrong became the first to step onto the lunar surface six hours after landing on July 21 at 02: 56: 15 UTC; Aldrin joined him about 20 minutes later. They spent about two and a quarter hours together outside the spacecraft, and collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth. Michael Collins piloted the command module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent just under a day on the lunar surface before rejoining Columbia in lunar orbit.
Document 12: Michael Collins (astronaut): Michael Collins (born October 31, 1930) (Major General, USAF, Ret.) is an American former astronaut and test pilot. Selected as part of the third group of fourteen astronauts in 1963, he flew into space twice. His first spaceflight was on Gemini 10, in which he and Command Pilot John Young performed two rendezvous with different spacecraft and undertook two extra-vehicular activities (EVAs, also known as spacewalks). His second spaceflight was as the Command Module Pilot for Apollo 11. While he stayed in orbit around the Moon, Neil Armstrong and Buzz Aldrin left in the Lunar Module to make the first manned landing on its surface. He is one of 24 people to have flown to the Moon. Collins was the fourth person, and third American, to perform an EVA; and is the first person to have performed more than one EVA.
Document 13: Apollo 11: Apollo 11 was the spaceflight that landed the first two people on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20: 17 UTC. Armstrong became the first person to step onto the lunar surface six hours after landing on July 21 at 02: 56: 15 UTC; Aldrin joined him about 20 minutes later. They spent about two and a quarter hours together outside the spacecraft, and collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth. Michael Collins piloted the command module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent 21.5 hours on the lunar surface before rejoining Columbia in lunar orbit.
Document 14: Olympus Has Fallen: Former Army Ranger Mike Banning (Gerard Butler) is the lead U.S. Secret Service agent assigned to head the U.S. Presidential detail. Banning maintains a personal, friendly relationship with President Benjamin Asher (Aaron Eckhart), First Lady Margaret (Ashley Judd) and their son Connor (Finley Jacobsen). During a snowy Christmas evening drive from Camp David to a campaign fundraiser, the car transporting the First Family spins out of control on a bridge due to icy conditions; Banning pulls Asher from the vehicle, but Margaret falls to her death while inside the car.
Document 15: Michael Collins (astronaut): Michael Collins (born October 31, 1930) is a former American astronaut, test pilot and major general of the United States Air Force Reserves. Selected as part of the third group of fourteen astronauts in 1963, he flew into space twice. His first spaceflight was on Gemini 10, in which he and Command Pilot John Young performed orbital rendezvous with two different spacecraft and undertook two extravehicular activities (EVAs, also known as spacewalks). His second spaceflight was as the command module pilot for Apollo 11. While he stayed in orbit around the Moon, Neil Armstrong and Buzz Aldrin left in the Apollo Lunar Module to make the first crewed landing on its surface.
ground_truth: American nuclear weapons
sub_queries: who was the only member of the apollo 11 moon expedition who did not walk on the moon Answer: Michael Collins
Michael Collins >> country of citizenship Answer: the United States
What is Kang seeking to use against the United States ? Answer: American nuclear weapons