Developments in North Korea's missile program:
Aug. 31, 1998: North Korea fires suspected missile over Japan and into the Pacific Ocean, calling it a satellite.
Sept. 13, 1999: North Korea pledges to freeze long-range missile tests.
March 10, 2003: North Korea fires a land-to-ship missile off east coast into waters between the Korean peninsula and Japan.
October 2003: North Korea fires two land-to-ship missiles.
May 2005: North Korea fires a short-range missile into waters between the Korean peninsula and Japan.
March 8, 2006: North Korea fires two short-range missiles.
July 5, 2006: North Korea launches seven missiles into waters between the Korean peninsula and Japan, including a long-range Taepodong-2.
July 15, 2006: UN Security Council adopts Resolution 1695 demanding North Korea halt missile program.
Oct. 9, 2006: North Korea conducts underground nuclear test blast after citing "extreme threat of a nuclear war" from US
Oct. 15, 2006: UN Security Council adopts Resolution 1718 condemning test, imposing sanctions and banning North Korea from activities related to its nuclear weapons program, including "their means of delivery."
July 14, 2007: North Korea shuts down its main Yongbyon reactor, later starts disabling it.
Sept. 19, 2008: North Korea says it is restoring a key atomic reactor.
Oct. 11, 2008: US removes North Korea from a list of states that sponsor terrorism.
April 5, 2009: North Korea launches long-range rocket.
April 13: The UN Security Council adopts a presidential statement condemning North Korea's rocket launch.
April 14: North Korea quits six-party nuclear talks and vows to restart its nuclear facilities in protest against the UN statement.
May 25: North Korea conducts its second nuclear test.
June 12: The UN Security Council adopts Resolution 1874 sanctioning North Korea for its nuclear test.
June 18: Japanese newspaper reports North Korea may fire a long-range missile toward Hawaii in early July. US Defense Secretary Robert Gates says he has positioned more missile defenses around Hawaii.
Mid-June: North Korea announces a no-sail zone off its east coast from June 25 to July 10 for military drills.
July 2: North Korea test-fires four short-range missiles.
July 4: North Korea fires three missiles, believed to be short-range.