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.
List of military headstamps
Czechoslovakia declared independence from Austro-Hungary in 1918. It was divided into the Czech and Slovak Republics in 1993.Early Cuban ammunition didn't use a headstamp code until the late 1970s.The first domestic ammunition plant was set up by Emperor Menelik II in 1911. It made 10.75×58mmR Russian Berdan Mk.2 and 7.62x54mmR M91 Russian cartridges. Ethiopia had long economic ties to Czechoslovakia dating back to the early 20th Century. An ammunition plant was set up by the Czechs in the reign of Empress Zäwditu in the 1920s that produced 7.92x54mmR Mauser cartridges for the new Czech weapons it was importing. A new plant was set up around 1947 to 1953 CE with assistance from the Považské Strojárne factory and was named after the contemporary ruler, Emperor Haile Selassie I. It made 7.92x57mm Mauser, .30-06 Springfield [7.62x63mm], and 7.62x51mm NATO ammunition for the military and .303 British rifle ammunition for the civilian market. Packaging lists the date in the Ethiopian calendar year (7 to 8 years less than that of the Gregorian calendar), while the cartridge headstamp uses the Common Era year.