War is an organized, armed, and often a prolonged conflict that is carried on between states, nations, or other parties typified by extreme aggression, social disruption, and usually high mortality. War should be understood as an actual, intentional and widespread armed conflict between political communities, and therefore is defined as a form of political violence. The set of techniques used by a group to carry out war is known as warfare. An absence of war (and other violence) is usually called peace.

In 2003, Nobel Laureate Richard E. Smalley identified war as the sixth (of ten) biggest problems facing the society of mankind for the next fifty years. In the 1832 treatise On War, Prussian military general and theoretician Carl von Clausewitz defined war as follows: "War is thus an act of force to compel our enemy to do our will."

While some scholars see warfare as an inescapable and integral aspect of human culture, others argue that it is only inevitable under certain socio-cultural or ecological circumstances. Some scholars argue that the practice of war is not linked to any single type of political organization or society. Rather, as discussed by John Keegan in his History of Warfare, war is a universal phenomenon whose form and scope is defined by the society that wages it. Another argument suggests that since there are human societies in which warfare does not exist, humans may not be naturally disposed for warfare, which emerges under particular circumstances. The ever changing technologies and potentials of war extend along a historical continuum. At the one end lies the endemic warfare of the Paleolithic^{[citation needed]} with its stones and clubs, and the naturally limited loss of life associated with the use of such weapons. Found at the other end of this continuum is nuclear warfare, along with the recently developed possible outcome of its use, namely the potential risk of the complete extinction of the human species.

Harrison Ford (born July 13, 1942) is an American film actor and producer. He is famous for his performances as Han Solo in the original Star Wars trilogy and as the title character of the Indiana Jones film series. Ford is also known for his roles as Rick Deckard in Blade Runner, John Book in Witness and Jack Ryan in Patriot Games and Clear and Present Danger. His career has spanned six decades and includes roles in several Hollywood blockbusters, including Presumed Innocent, The Fugitive, Air Force One, and What Lies Beneath. At one point, four of the top six box-office hits of all time included one of his roles. Five of his films have been inducted into the National Film Registry.

In 1997, Ford was ranked No. 1 in Empire's "The Top 100 Movie Stars of All Time" list. As of July 2008^[update], the United States domestic box office grosses of Ford's films total over US$3.5 billion, with worldwide grosses surpassing $6 billion, making Ford the third highest grossing U.S. domestic box-office star. Ford is the husband of actress Calista Flockhart.

John Deszo Ratzenberger (born April 6, 1947) is an American actor, voice actor, and entrepreneur. He is best known for his role as Cliff Clavin in Cheers and his recurring supporting cast roles in Pixar films.

Ratzenberger was born in Bridgeport, Connecticut, the son of Bertha (née Grohowski) and Deszo Alexander Ratzenberger. He attended St. Ann's School in Bridgeport and Sacred Heart University in Fairfield, Connecticut. In 1969 Ratzenberger was a tractor operator at the Woodstock Festival. He moved to London in 1971, living there for ten years.

Ratzenberger was a house framer living in London when he began his career in the performing arts. His first role was a patron in The Ritz (1976). Throughout the late 1970s and early 1980s Ratzenberger appeared in various minor roles in major feature films, including Firefox; A Bridge Too Far; Superman as a missile controller; Superman II as the NASA control man; Star Wars Episode V: The Empire Strikes Back as "Major Bren Derlin"; Motel Hell as a drummer; Outland as a doomed mine worker named Tarlow; and Gandhi, playing an American Lieutenant.

Walter Elias "Walt" Disney (December 5, 1901 – December 15, 1966) was an American film producer, director, screenwriter, voice actor, animator, entrepreneur, entertainer, international icon, and philanthropist, well known for his influence in the field of entertainment during the 20th century. Along with his brother Roy O. Disney, he was co-founder of Walt Disney Productions, which later became one of the best-known motion picture producers in the world. The corporation is now known as The Walt Disney Company and had an annual revenue of approximately US$36 billion in the 2010 financial year.

Disney is particularly noted as a film producer and a popular showman, as well as an innovator in animation and theme park design. He and his staff created some of the world's most well-known fictional characters including Mickey Mouse, for whom Disney himself provided the original voice. During his lifetime he received four honorary Academy Awards and won 22 Academy Awards from a total of 59 nominations, including a record four in one year, giving him more awards and nominations than any other individual in history. Disney also won seven Emmy Awards and gave his name to the Disneyland and Walt Disney World Resort theme parks in the U.S., as well as the international resorts Tokyo Disney Resort, Disneyland Paris, and Hong Kong Disneyland.