Mexico

The year 2006 was declared the International Year of Deserts and Desertification by the United Nations General Assembly. Several countries issued stamps that year in an effort to raise awareness of the problem of increased desertification in the world.

On September 12, 1997, Mexico and Ireland made a joint stamp issue commemorating the 150 Anniversary of the Irish volunteers who fought for Mexico in the Mexican American War, 1846-1847.