Czech Republic–Slovakia relations
Before 1918, both countries were part of Austria–Hungary. However, after the Ausgleich of 1867 Czechia belonged to the Austrian Empire while Slovakia belonged to the administratively separate Kingdom of Hungary, and between 1918 and December 31, 1992, both countries were part of Czechoslovakia. 
Both countries established diplomatic relations on January 1, 1993. These international relations are usually referred to or described as "very good", "cordial", and "above standard" in the media. When a Czech or Slovak president is inaugurated, very often his first international visit is to the former part of the common country. The same custom applies to newly elected prime ministers of the Czech Republic and Slovakia.
History of Slovakia
In an election held in June 1992, Václav Klaus's Civic Democratic Party won in the Czech lands on a platform of economic reform, and Vladimír Mečiar's Movement for a Democratic Slovakia (HZDS) emerged as the leading party in Slovakia, basing its appeal on the fairness of Slovak demands for autonomy. Mečiar and Klaus negotiated the agreement to divide Czechoslovakia, and Mečiar's party — HZDS — ruled Slovakia for most of its first five years as an independent state, except for a 9-month period in 1994 after a vote of no-confidence, during which a reformist government under Prime Minister Jozef Moravčík operated.