"Preemptive attack is morally justified when three conditions are fulfilled: The existence of an intention to injure, the undertaking of military preparations that increase the level of danger, and the need to act immediately because of a higher degree of risk. Since these conditions were met in Israel's Six Day War, Israel's preemptive attack on Egypt on June 5, 1967 was a legitimate act of self-defense." Mark R. Amstutz International Ethics: Concepts, Theories, and Cases in Global Politics
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 59 "The British plan which was adopted was more modest. While ostensibly intended to bring Allied troops to the Finnish front, it laid its main emphasis on operations in northern Norway and Sweden. The main striking force was to land at Narvik and advance along the railroad to its eastern terminus at Lulea, occupying Kiruna and Gallivare along the way. By late April two Allied brigades were to be established along that line."
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 66, 67 "The British held back two divisions from France, intending to put them into the field in Norway, and planned to expand their force eventually to 100,000 men. The French intended to commit about 50,000. The British and French staffs agreed that the latter half of March would be the best time for going into Norway;"
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p.67,68 "The objectives were to take Narvik, the railroad, and the Swedish ore fields;" "an intercepted radio message setting 14 March as the deadline for preparation of transport groups indicated that the Allied operation was getting under way. But another message, intercepted on the 15th, ordering the submarines to disperse revealed that the peace [in Finland] had disrupted the Allied plan."
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 68
"The Six Day War between Israel and alliance of Egypt, Syria, Jordan and Iraq was an example of preemption." And, "It exemplifies preemption." Charles W. Kegley, Gregory A. Raymond The Global Future: A Brief Introduction to World Politics
"The United States has often walked a fine line between preemption and prevention. In fact there have only been a handful of clear-cut cases of military preemption by any states in the last 200 years. (Israeli preemption in the Six Day War of 1967 is perhaps the most cited example)."U.S. National Security Strategy: a New Era U.S. Department of State (2002)
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 59 "The British plan which was adopted was more modest. While ostensibly intended to bring Allied troops to the Finnish front, it laid its main emphasis on operations in northern Norway and Sweden. The main striking force was to land at Narvik and advance along the railroad to its eastern terminus at Lulea, occupying Kiruna and Gallivare along the way. By late April two Allied brigades were to be established along that line."
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 66, 67 "The British held back two divisions from France, intending to put them into the field in Norway, and planned to expand their force eventually to 100,000 men. The French intended to commit about 50,000. The British and French staffs agreed that the latter half of March would be the best time for going into Norway;"
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p.67,68 "The objectives were to take Narvik, the railroad, and the Swedish ore fields;" "an intercepted radio message setting 14 March as the deadline for preparation of transport groups indicated that the Allied operation was getting under way. But another message, intercepted on the 15th, ordering the submarines to disperse revealed that the peace [in Finland] had disrupted the Allied plan."
"COMMAND DECISIONS", CENTER OF MILITARY HISTORY DEPARTMENT OF THE ARMY WASHINGTON, D.C., 2000. URLArchived 2007-12-30 at the Wayback Machine p. 68