In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: What time period was the Seven Years' War? Passage 1:Dillon returned to Reading in 1995 and held a number of roles within Reading's academy. He was also reserve team manager before he replaced Martin Allen as Alan Pardew's assistant in November 2001. Under the guidance of the management duo, the Royals were promoted to Division 1 after finishing as runners-up to Brighton & Hove Albion in the 2001–02 season. Pardew resigned in September 2003 and Dillon stepped in as the caretaker manager, until Steve Coppell was appointed in October 2003. At this point Dillon reverted to his role as the number two. Dillon passed his UEFA Pro Licence in 2004 and in the 2005–06 season Reading won the Championship with a record of 106 points. In their first season in the Premier League Reading finished 8th. In May 2007, Dillon followed Coppell's lead in committing himself to Reading for a further two seasons. They were relegated back to the Championship the next season and in May 2009 following the resignation of Coppell, Dillon alongside other first-team coach Wally Downes, left Reading following the team's failure to gain promotion back to the Premier League.
 Passage 2:An important portion of the 1999 war between Yugoslavia and the NATO coalition involved combat between the Yugoslav Air Force, which was the predecessor of today's Serbian Air Force, and the opposing air forces of NATO. United States Air Force F-15s and F-16s flying mainly from Italian air force bases attacked the defending Yugoslav fighters—usually MiG-29s, which were in bad shape, due to lack of spare parts and maintenance. A total of six Yugoslav MiG-29s were shot down in 1999, of which three were shot down by USAF F-15s, one by a USAF F-16, and one by a RNAF F-16. One aircraft, according to a Serbian documentary, was hit by friendly fire from the ground. Another four were destroyed on the ground. During the course of the air war, Yugoslav anti-aircraft defenses downed a USAF F-16C and an F-117 Nighthawk, the first stealth aircraft to ever be shot down in combat.
 Passage 3:Charles-Joseph Lamoral, 7th Prince de Ligne in French; in German Karl-Joseph Lamoral 7. Fürst von Ligne (also known as Karl Fürst von Ligne or Fürst de Ligne): (23 May 1735 – 13 December 1814) was a Field Marshal, inhaber of an infantry regiment, prolific writer, intellectual, member of the princely family of Ligne, and Habsburg Austrian subject. He fought as a field officer during several famous battles during the Seven Years' War and briefly returned to military duty in the War of the Bavarian Succession. He performed an important diplomatic mission to Catherine the Great in 1787 and led troops against the Ottoman Empire at Belgrade in 1789. Beginning in the 1770s, he authored an impressive volume of work. After his estates in the Austrian Netherlands were lost to France during the War of the First Coalition, he lived in Vienna. All three of his sons died before him, but his wife and four daughters all outlived him. His grandson, the 8th Prince, became a Belgian statesman.
3