Alliance 90 (German: Bündnis 90) was an alliance of three non-Communist political groups in East Germany. It merged with the German Green Party in 1993 to form Alliance '90/The Greens.

Bündnis 90 was formed in February 1990 by Neues Forum, Demokratie Jetzt and the Initiative Frieden und Menschenrechte. It received 2.9% of the vote in the 1990 Volkskammer elections. For the first all-German elections it formed a joint list with the East German Green Party. It was this coalition that merged with the West German Green Party in 1993.

On 7 February 1990, the Neue Forum (“New Forum”), the Initiative Frieden und Menschenrechte (“Peace and Human Rights Initiative”) and Demokratie Jetzt (“Democracy Now”) groups agreed upon the creation of the strategic partnership Bündnis 90 (“Alliance ’90”) for the German Volkskammer elections. On 18 March 1990, in the next and final free election of the former East Germany, the electoral alliance received 2.9% of the vote, thus securing 12 seats. By far the best result for Alliance ’90 was in constituency of Berlin with 6.3%. In the remaining constituencies results ranged from 1.6% in Neubrandenburg to 3.8% in Potsdam. Together with the eight electees from the “Green Party in the GDR”, they created the Fraktion Bündnis 90/Grüne (“Alliance ’90/Greens Party”).

The Four Corners is a region of the United States consisting of the southwestern corner of Colorado, northwestern corner of New Mexico, northeastern corner of Arizona and southeastern corner of Utah. The Four Corners area is named after the quadripoint where the boundaries of the four states meet, where the Four Corners Monument is located. The majority of the Four Corners region is part of semi-autonomous indigenous American Indian nations, the largest of which is the Navajo Nation, followed by Hopi, Ute and Zuni Indian nations. The Four Corners region is part of a larger region known as the Colorado Plateau and is mostly rural, rugged and arid. In addition to the monument, commonly visited areas within Four Corners include Monument Valley, Mesa Verde National Park and Canyon de Chelly National Monument. The most populous city in the Four Corners region is Farmington, New Mexico, followed by Durango, Colorado.

The United States first acquired the area now called Four Corners from Mexico after the Mexican–American War in 1848. In 1863 Congress created Arizona Territory from the western part of New Mexico Territory. The boundary was defined as a line running due south from the southwest corner of Colorado Territory, which had been created in 1861. This was an unusual act of Congress, which almost always defined the boundaries of new territories as lines of latitude or longitude, or following rivers. By defining one boundary as starting at the corner of another Congress ensured the eventual creation of four states meeting at a point, regardless of the inevitable errors of boundary surveying. The area was first surveyed by the U.S. Government in 1868 as part of an effort to make Colorado Territory into a state, the first of the Four Corners states formed. The first marker was placed at the spot in 1912. The first Navajo tribal government was established in 1923 to regulate an increasing number of oil exploration activities on Navajo tribal lands.