North-South Concordant

The North-South Concordant (NSC; : 남북 협응; : Concordante Norte-Sur; CNS), also known as The Concordant (: 일치; : El Concordant), is a multilateral  between the states of Koryeo, Agrana y Griegro, Veikaia, Naseristan and Tiperyn in Anterra. The Concordant was formally established in 2001, spawning from the North-South Defence Consortium involving private and public based in each member nation.

The NSC's core task is cooperative security through regular military exercises, common threat response strategies and facilitation of research, development and manufacture of common armaments and technologies. While the alliance does not have a binding provision for in the event of an attack on a member party, the alliance promotes  through the development of unified threat-response strategies.

Precursors
The first ancestor of the North-South Concordant was the Crown Alliance that formed in 1896 to balance against the military threat of Teutonenland in the late-19th and early-20th centuries. Member states at the beginning of the The Grand Campaigns were Agrana y Griegro, Tiperyn and Koryeo. Initially, the Crown Alliance remained detached from the conflict between Teutonenland and Vallis. However, once the Teutonenland offensive penetrated deep into Vallis and threatened Tiperyn's southern coast, the Crown Alliance intervened. Tiperyn deployed an expeditionary army to Vallis to halt Teutonic forces and Agrana y Griegro launched an offensive in southern Teutonenland. Koryeo offered financial and other aid in the form of loans, the export of ordnance and the lease of transport ships to other alliance nations. This was the first military operation conducted by alliance.

After the end of the Great War and Communist revolution in Teutonenland, the Crown Alliance dissolved. However, Agrana y Griegro, Tiperyn and Koryeo each trilaterally agreed with one another to not challenge each others' sphere of influence or expeditions in Kesh. Further, in the 1933, Tiperyn and Koryeo would form the North-South Defence Consortium composed of defence contractors. The mission statement of the new institution was to pool resources for the research, development and manufacture of military implements and lower barriers to the trade of materiel and defence products between nations. Agrana y Griegro would join the consortium in 1972. Ultimately, the consortium would form the basis of the North-South Concordant which was formally established in 2001. Naseristan joined the allince in 2003. The state of Veikaia is the alliance's newest member, joining in 2012.

Core tenets
Members of the Concordant adhere to the following principles as stated in the alliance charter:
 * 1) Member states will not challenge or openly criticize the spheres of influence or right to sovereignty of other member states on the world stage;
 * 2) Member states will make every effort to conduct war games regularly to maintain expeditionary readiness and form familiarity between each others' armed forces;
 * 3) Member states will make every effort to standardize arms to ease manufacturing, increase commonality and benefit the collective economy;
 * 4) Member states are not obligated to come to the defence of other members in the case of outside aggression. However, member states will not conduct military operations against a member state;
 * 5) Member states will not collude with states who are conducting military operations against a member state.

Armament trade and development
Through the North-South Defence Consortium - the trade bloc subdivision of the Concordant - Tiperyn, Koryese and Agranan defence contractors often cooperate in the research and development and manufacture of armaments and defence technologies. This institution has lead to the standardization of a large portion of each member states' ordnance and firearms and shared technologies since the 1930s. Two of the most significant standardizations as a result of this consortium were the adoption of the rifle cartridge in the early 20th century and the development of Griphon air superiority fighter in the 21st century.