Question: The Italian general who developed the theory that "the bomber will always get through" was born in what year?

Context paragraphs:
Giovanni Messe: Giovanni Messe (10 December 1883 – 18 December 1968) was an Italian general, politician, and field marshal ("Maresciallo d'Italia").  He is considered by many to have been the best Italian general of the Second World War.

Vangelis Karampoulas: Evangelos "Vangelis" Karampoulas (alternate spellings: Vaggelis, Karaboulas) (Greek: Ευάγγελος "Βαγγέλης" Καράμπουλας; born November 18, 1981) is a Greek professional basketball player.  He is a 2.00 m (6 ft 6⁄ in) tall shooting guard-small forward.  His nickname is Mr. Promotion, due to the fact that the clubs he plays with almost always get promoted to the next higher league level.

The bomber will always get through: The bomber will always get through was a phrase used by Stanley Baldwin in 1932 (although the theory was originally developed by Italian General Giulio Douhet), in the speech "A Fear for the Future" to the British Parliament.  He and others believed that, regardless of air defences, sufficient bomber aircraft would survive to destroy cities.

Treateth: Treateth is a melodic death metal band.  In the beginning named Hostilis of Mort.  They are from Guatemala City, Guatemala.  Formed at the end of 2007, as an idea of Erick and Marco Orozco, who always get a lot of trouble for find members for the band that be qualified by the expectations for the brothers.  Treateth stars in 2008, when the actual vocalist came into the band.  The band has released one EP, five singles, and one studio album being recorded.

House M.D. Original Television Soundtrack: House M.D. Original Television Soundtrack is a soundtrack album from the television series "House".  It was released on September 18, 2007 by Nettwerk Records.  The soundtrack includes full length versions of songs featured in the show, such as "See the World" by Gomez, "Walter Reed" by Michael Penn, and "Teardrop", the show's opening theme, performed by Massive Attack.  It also featured songs that were recorded especially for the series that were not previously released, such as a cover of the Christina Aguilera song "Beautiful" by Elvis Costello, and covers of The Rolling Stones' "You Can't Always Get What You Want" and Cab Calloway's "Minnie The Moocher" by Band From TV.

Alice D. G. Miller: Alice D. G. Miller (June 28, 1894 – July 24, 1985) was an early American screenwriter.  She did not always get credited for the writing she did.  Her mother was Alice Duer Miller.

Peter Glaze: William George Peter Glaze (17 September 1924 – 20 February 1983) was an English comedian born in London.  He hosted "Crackerjack" with Leslie Crowther and Eamonn Andrews in the 1960s, and with Michael Aspel, Don Maclean and Bernie Clifton in the 1970s.  In "Crackerjack" sketches, he usually played a pompous or upper-class character, who would always get exasperated with his partner Don Maclean during the course of the sketch.  Maclean would then give an alliterative reply, such as "Don't get your knickers in a knot" or "Don't get your tights in a twist", He regularly uttered the expression "D'oh!" , originated by James Finlayson in Laurel and Hardy films, long before it became associated with cartoon character Homer Simpson.  He was also on the panel of the long-running radio panel game "Twenty Questions", along with Joy Adamson, Anona Winn and Norman Hackforth.

I Always Get Lucky with You: "I Always Get Lucky With You" is a song written by Merle Haggard, Freddy Powers, Gary Church, and Tex Whitson and recorded by American country music artist George Jones.  It was released in April 1983 as the second single from the album "Shine On".  "I Always Get Lucky with You" became George Jones' ninth and final number one on the country chart as a solo artist .  The single stayed at number one for one week and spent thirteen weeks on the country chart.

Giulio Douhet: General Giulio Douhet (30 May 1869 – 15 February 1930) was an Italian general and air power theorist.  He was a key proponent of strategic bombing in aerial warfare.  He was a contemporary of the 1920s air warfare advocates Walther Wever, Billy Mitchell and Sir Hugh Trenchard.

Marginal revenue: In microeconomics, marginal revenue (R') is the additional revenue that will be generated by increasing product sales by one unit.  It can also be described as the unit revenue the last item sold has generated for the firm.  In a perfectly competitive market, the additional revenue generated by selling an additional unit of a good is equal to the price the firm is able to charge the buyer of the good.  This is because a firm in a competitive market will always get the same price for every unit it sells regardless of the number of units the firm sells since the firm's sales can never impact the industry's price.  However, a monopoly determines the entire industry's sales.  As a result, it will have to lower the price of all units sold to increase sales by 1 unit.  Therefore, the marginal revenue generated is always lower than the price the firm is able to charge for the unit sold, since each reduction in price causes unit revenue to decline on every good the firm sells.  The marginal revenue (the increase in total revenue) is the price the firm gets on the additional unit sold, less the revenue lost by reducing the price on all other units that were sold prior to the decrease in price.

Supporting paragraphs: The bomber will always get through Giulio Douhet
Answer: 1869