A presidential system, or single executive system, is a form of government in which a head of government, typically with the title of president, leads an executive branch that is separate from the legislative branch in systems that use separation of powers. This head of government is in most cases also the head of state. In a presidential system, the head of government is directly or indirectly elected by a group of citizens and is not responsible to the legislature, and the legislature cannot dismiss the president except in extraordinary cases. A presidential system contrasts with a parliamentary system, where the head of government comes to power by gaining the confidence of an elected legislature.
The President of the Republic is a title used for heads of state and/or heads of government in countries having republican form of government.
The State flag of Yemen was adopted on May 22, 1990, the day that North Yemen and South Yemen were unified. The flag of Yemen is the Arab Liberation Flag of 1952, introduced after the Egyptian Revolution of 1952 in which Arab nationalism was a dominant theme. The Arab Liberation Flag of 1952 served as the inspiration for the flags of both North and South Yemen prior to unification, as well as for the current flags of Egypt, Iraq, Sudan, Palestine and Syria.
This gallery of sovereign state flags shows the national or state flags of sovereign states that appear on the list of sovereign states. For flags of other entities, please see gallery of flags of dependent territories. Each flag is depicted as if the flagpole is positioned on the left of the flag, except for those of Iran, Iraq and Saudi Arabia which are depicted with the hoist to the right.
The current flag of Sudan was adopted on 20 May 1970 and consists of a horizontal red-white-black tricolour with a green triangle at the hoist. The flag is based on the Arab Liberation Flag of the Egyptian Revolution of 1952, as are the flags of Egypt, Iraq, Syria, Yemen, and Palestine and formerly of the United Arab Republic, North Yemen, South Yemen, and the Libyan Arab Republic.
This armorial of sovereign states shows the coat of arms, national emblem, or seal for every sovereign state. Although some countries do not have an official national emblem, unofficial emblems which are de facto used as national emblems are also shown below.
The Western Bloc is an informal, collective term for countries that were officially allied with the United States during the Cold War of 1947–1991. While the NATO member states, in Western Europe and Northern America, were pivotal to the bloc, it included many other countries, in the broader Asia-Pacific region, the Middle East, Latin America, and Africa with histories of anti-Soviet, anti-communist and, in some cases anti-socialist, ideologies and policies. As such, the bloc was opposed to the political systems and foreign policies of communist countries, which were centered on the Soviet Union, other members of the Warsaw Pact, and usually the People's Republic of China. The name "Western Bloc" emerged in response to and as the antithesis of its communist counterpart, the Eastern Bloc. Throughout the Cold War, the governments and the Western media were more inclined to refer to themselves as the "Free World" or the "First World", whereas the Eastern Bloc was often referred to as the "Communist World" or less commonly the "Second World".
This is a gallery of international and national flags used in Asia.
A naval ensign is an ensign used by naval ships of various countries to denote their nationality. It can be the same or different from a country's civil ensign or state ensign.
Military aircraft insignia are insignia applied to military aircraft to visually identify the nation or branch of military service to which the aircraft belong. Many insignia are in the form of a circular roundel or modified roundel; other shapes such as stars, crosses, squares, or triangles are also used. Insignia are often displayed on the sides of the fuselage, the upper and lower surfaces of the wings, as well as on the fin or rudder of an aircraft, although considerable variation can be found amongst different air arms and within specific air arms over time.
This gallery of head of state standards shows the Presidential or Royal Standards, a flag that is related to the head of state of that country.
The Lunar sample displays are two commemorative plaques consisting of small fragments of Moon specimen brought back by the astronauts of the Apollo 11 and Apollo 17 lunar missions. The plaques and Moon rocks were given as goodwill gifts in 1970 and 1973 to the people of 135 countries, the 50 states of the United States, and to U.S. overseas territories by United States President Richard Nixon.
The 18th World Athletics Indoor Championships were held from 18 to 20 March 2022 in Belgrade, Serbia.