Question: A country's military branch, which in the US contains the Air Defense Artillery, was unprepared for the invasion of the country whose ccTLD was ".cs". The unprepared country was the only communist country to have an embassy where?

<P0-S0> Currently, the army is divided into the Regular Army, the Army Reserve, and the Army National Guard. <P0-S1> The army is also divided into major branches such as Air Defense Artillery, Infantry, Aviation, Signal Corps, Corps of Engineers, and Armor. <P0-S2> Before 1903 members of the National Guard were considered state soldiers unless federalized (i.e., activated) by the President. <P0-S3> Since the Militia Act of 1903 all National Guard soldiers have held dual status: as National Guardsmen under the authority of the governor of their state or territory and, when activated, as a reserve of the U.S. Army under the authority of the President. <SEP> <P1-S0> iron beam (, "") is an air defense system which is in development by israeli defense contractor rafael advanced defense systems. <P1-S1> unveiled at the singapore air show on february 11, 2014. the system is designed to destroy short-range rockets, artillery, and mortars with a range of up to , too small for the iron dome system to intercept effectively. <P1-S2> in addition, the system could also intercept unmanned aerial vehicles. <P1-S3> iron beam will use a "directed high energy laser beam" to destroy hostile targets with ranges of up to . <P1-S4> iron beam will constitute the fifth element of israel's integrated air defense system, in addition to arrow 2, arrow 3, david's sling, and iron dome. <P1-S5> however, iron beam is also a stand-alone system. <SEP> <P2-S0> .cs was for several years the country code top-level domain (ccTLD) for Czechoslovakia. <P2-S1> However, the country split into the Czech Republic and Slovakia in 1993, and the two new countries were soon assigned their own ccTLDs: .cz and .sk respectively. <P2-S2> The use of .cs was gradually phased out, and the ccTLD was deleted some time around January 1995. <SEP> <P3-S0> In 1968, Tito offered Czechoslovak leader Alexander Dubček to fly to Prague on three hours notice if Dubček needed help in facing down the Soviets. <P3-S1> In April 1969, Tito removed generals Ivan Gošnjak and Rade Hamović in the aftermath of the invasion of Czechoslovakia due to the unpreparedness of the Yugoslav army to respond to a similar invasion of Yugoslavia. <SEP> <P4-S0> Because of its neutrality, Yugoslavia would often be rare among Communist countries to have diplomatic relations with right-wing, anti-Communist governments. <P4-S1> For example, Yugoslavia was the only communist country allowed to have an embassy in Alfredo Stroessner's Paraguay. <P4-S2> One notable exception to Yugoslavia's neutral stance toward anti-communist countries was Chile under Pinochet; Yugoslavia was one of many countries which severed diplomatic relations with Chile after Salvador Allende was overthrown. <P4-S3> Yugoslavia also provided military aid and arms supplies to staunchly anti-Communist regimes such as that of Guatemala under Kjell Eugenio Laugerud García. <SEP> <P5-S0> the armed forces have three branches: navy, army and air force. <P5-S1> they serve primarily as a self-defense force whose mission is to protect the territorial integrity of the country and provide humanitarian assistance and security at home and abroad. <P5-S2> as of 2008, the three branches numbered 39,200 active personnel including 7,500 women. <P5-S3> portuguese military expenditure in 2009 was $5.2 billion, representing 2.1 percent of gdp. <P5-S4> military conscription was abolished in 2004. the minimum age for voluntary recruitment is 18 years.