sometimes with as many as six editions per year. A collector's edition of classic Risk in a bookshelf-format wooden box was issued in 2005 as part of the Parker Brothers Vintage Game series, distributed through Target Stores. In 2008, Winning Moves, a Hasbro licensee, introduced 1959 Risk, a reproduction of the original Parker Brothers version with original artwork, wooden playing pieces and rules. Many themed versions are currently being published, and new themes continue to be introduced. In the first editions, the playing pieces were wooden cubes (one set each of black, blue, green, pink, red and yellow) representing one troop each and a few rounded triangular prisms representing ten troops each, but in later versions of the game these pieces were molded of plastic to reduce costs. In the 1980s, these were changed to pieces shaped into the Roman numerals I, III, V, and X. The 1993 edition introduced plastic infantry tokens (representing a single unit), cavalry (representing five units), and artillery (representing ten units). The 40th Anniversary Collector's Edition contained the same troop pieces but made of metal rather than plastic. In the 2005 "bookcase" edition, playing pieces are once again wooden cubes. Equipment and design Equipment includes a large tabletop board depicting a political map of the world, divided into forty-two territories, which are grouped into six continents by color. In addition to shared boundaries between territories which define routes of attack/defense, numerous special trans-oceanic or trans-sea routes are also marked; for example, the route between North Africa and Brazil. The oceans and seas are not part of the playing field. Each Risk game comes with a number of sets (either 5 or 6) of different colored tokens denoting troops. A few different or larger tokens represent multiple (usually 5 or 10) troops. These token types are purely a convention for ease of representing a specific army size. If a player runs out of army pieces during the game, pieces of another color or other symbolic tokens (coins, pieces from other games, etc.) may be substituted to help keep track of armies. Also included is a deck of Risk cards, comprising forty-two territory cards, two wild cards, and twelve or twenty-eight mission cards. The territory cards correspond to the 42 territories on the playing board. Each of the territory cards also depicts a symbol of an infantry, cavalry, or artillery piece. One of these cards is awarded