Information: - Christian Henel ( born 28 January 1988 in Bad Durkheim , West Germany ) is a German footballer who last played for FK Pirmasens . - The North Atlantic Treaty Organization (NATO '), also called the North Atlantic Alliance, is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4April 1949. The organization constitutes a system of collective defence whereby its member states agree to mutual defence in response to an attack by any external party. Three NATO members are permanent members of the United Nations Security Council with the power to veto and are officially nuclear-weapon states: the United States, France and the United Kingdom. NATO's headquarters are located in Haren, Brussels, Belgium, where the Supreme Allied Commander also resides. Belgium is one of the 28 member states across North America and Europe, the newest of which, Albania and Croatia, joined in April 2009. An additional 22countries participate in NATO's Partnership for Peace program, with 15other countries involved in institutionalized dialogue programmes. The combined military spending of all NATO members constitutes over 70% of the global total. Members' defence spending is supposed to amount to 2% of GDP. - West Germany is the common English name for the Federal Republic of Germany or FRG (or "RFA") in the period between its creation on 23 May 1949 to German reunification on 3 October 1990. During this Cold War era, NATO-aligned West Germany and Warsaw Pact-aligned East Germany were divided by the Inner German border. After 1961 West Berlin was physically separated from East Berlin as well as from East Germany by the Berlin Wall. This situation ended when East Germany was dissolved and its five states joined the ten states of the Federal Republic of Germany along with the reunified city-state of Berlin. With the reunification of West and East Germany, the Federal Republic of Germany, enlarged now to sixteen states, became known simply as "Germany". This period is also referred to as the Bonn Republic ("Bonner Republik") by historians, alluding to the interwar Weimar Republic and the post-reunification Berlin Republic. - FK Pirmasens is a German association football club in Pirmasens, Rhineland-Palatinate. The team was formed as the football section of the gymnastics and sports club "TV Pirminia Pirmasens" in 1903 and became independent in 1914. They took on their current name in 1925. "FK" is one of the few teams that uses the German "Klub" in their name as opposed to the commonly affected English-style term "Club". What entity does 'christian henel' has the relation 'sport' with?
A:
association football