Foreign policy of Tiperyn

The foreign policy of the Holy Tiperyn Realm is its interactions with foreign nations and how it sets standards of interaction for its organizations, corporations and citizens.

Military
As a leading member of the North-South Concordant, the Tiperyn Realm Defence—Tiperyn's armed force—is integral to several bilateral mutual defence arrangements as well as a number of major multilateral cooperative security agreements. Among these include the stationing of Tiperyn forces abroad, patrolling of maritime trade corridors, and investment in collective defence infrastructure. Tiperyn is currently engaged in combat against, and Mihrani nationalist groups in Nasiria as part of its participation in the Nasiri Civil War. Additionally, Tiperyn's network of military bases located within its overseas holdings allow its military to exert far greater influence than it would otherwise be able to.

Grand strategy
The Tiperyn military's grand strategy is focused on preserving the integrity and influence of Tiperyn through abroad,, naval and amphibious supremacy, and nuclear deterrence.

Strategic depth
Heavily influenced by experience gained during the Grand Campaigns and Great Kesh War, the Realm Defence's conventional strategy is to create strategic depth outside of Tiperyn's borders to prevent a domestic ground war. This doctrine is known as dynbehald, a of the native Tipsprek words dynamysk (Anglic: dynamic) and behald (Anglic: preservation). In order of severity, the Tiperyn military attempts to achieve dynbehald by:
 * 1) Maintaining its overseas Realm Viceroyalties and Dominions and a network of alliances as potential first lines of defense against foreign aggression and as hubs for deterrent force projection.
 * 2) Creating proxy powers through investment and political influence to aid in force projection, limit the encroachment of rival influence, and shift potential battlegrounds from Western Artemia to further overseas.
 * 3) Maintaining sufficient naval forces to preserve Tiperyn's sea connection to its major allies (i.e. Agrana y Griegro and Koryeo) and seize naval supremacy within 200 kilometers of Tiperyn's shores.
 * 4) Maintaining sufficient amphibious land and air forces to invade hostile territory in close proximity to Tiperyn's shores to preoccupy opposition forces that could otherwise potentially be committed to an invasion of Tiperyn.

Although Tiperyn had been a major colonial power as late as the 19th century and still maintains a number of overseas territories, its overseas holdings were not considered to be strategic depth integral to Tiperyn's defence strategy until after the Grand Campaigns. The precursors to dynbehald was first practiced during the Grand Campaigns. In 1919, Tiperyn entered the four-year old conflict on the side of the Ovancian monarchy with the aim of preserving a friendly Ovancia as a buffer state between Tiperyn and the growing military might of Goetia. The doctrine itself was formalized immediately following the Grand Campaigns following a protracted ground campaign in western Tiperyn undertaken by Goidelic nationalists and republican forces and the ultimate loss of the Airgialla archipelago. With most of its nearby allies gone—with the exception of Agrana y Griegro, Tiperyn's military strategy centred itself upon forcing decisive battles and dominating the waters in proximity to its shores abroad to preserve the Tiperyn mainland. This involved the fortification and militarization of its overseas holdings, expansion of its holdings in Nasiria, formalization of the ad hoc Crown Alliance, and development of friendly proxy states in Kesh and Avalonia. These measures were planned during the interwar period between the end of the Grand Campaigns and beginning of the Great Kesh War. By the end of the Kesh War, most of these elements had been achieved or initiated.

The expansion and militarization of Nasiria and the development of Asharistan as a proxy led to the outbreak of the Great Kesh War in 1949. This conflict, although costly, expanded the Realm Dominion of Nasiria into the oil and mineral rich southern portions that had been out of Tiperyn's reach when the armistice was signed that ended the Grand Campaigns over three decades before. Additionally, it reinforced the friendly states of Asharistan, Alvakalia and Guurdalai—cementing its influence in Kesh—and established Tiperyn as a nuclear power. At the end of the conflict the Crown Alliance that had fought with Tiperyn since shortly before the Grand Campaigns was formalized in the form of the North-South Concordant. Tiperyn's status within this new alliance significantly increased the nation's force projection capability and politico-economic support, essentially replacing the capability it used to possess as a colonial power.

Nuclear deterrence
Tiperyn was among the first of several states to develop nuclear weapons and the only nation to use nuclear weapons in combat. Tiperyn currently maintains a nuclear arsenal maintained by the Realm Aero Service's Missileer Corps and Bomber Corps, Realm Guard's Ordnance Corps, and Realm Armada. These branches are responsible for maintaining tactical and strategic nuclear capability, with the latter being a key to deterring peer conflict.

Strategically, the Realm Defence's nuclear capability is focused on denying the opposition the use of their own nuclear capability and defending the Tiperyn mainland from nuclear strikes. This is done through planned strikes of airfields and missile silos, the use of anti-ballistic missiles to destroy incoming nuclear ballistic missiles, and a robust air defense network in Tiperyn and North-South Concordant member states to defend against nuclear bombers. Influenced by the nuclear bombing of Wujin, Kodeshia during the Kesh War, the strike of civilian centers is not included in Tiperyn's official strategic doctrine on moral grounds, although such strikes would be likely if Tiperyn lost an initial nuclear exchange. This policy is also partially practical, as conventional ground combat against opposition with the support of tactical nuclear weapons would follow a successful first strike or defense and second strike with the objective of capturing rather than destroying key civilian infrastructure.

Tiperyn's strategic nuclear capabilities include:
 * 1) Intermediate-Range Ballistic Missiles launched from ballistic missile submarines, maintained by individual Realm Armada Sea Divisions (an OF-8 command).
 * 2) Intercontinental- and Intermediate-Range Ballistic Missiles launched from underground silos, maintained directly by the Realm Aero Service Missileer Corps (an OF-9 command).
 * 3) Anti-Ballistic Missile interceptors with nuclear warheads launched from underground silos, maintained directly by the Realm Aero Service Missileer Corps (an OF-9 command).
 * 4) Gravity Bombs, Cruise Missiles and Short-Range Ballistic Missiles Ballistic Missiles launched from strategic bomber aircraft, maintained by individual Realm Aero Service Bomber Groups (an OF-5 command)

Tiperyn's nuclear doctrine is moreso focuses on their tactical application of low-yield nuclear weapons against military targets. Short-range nuclear assets assigned to some specialist battalion- and regiment-sized units giving Tiperyn ground, air and sea forces nuclear capability to use tactically and operationally in the event of an existential peer conflict. Tiperyn's tactical nuclear capabilities include:
 * 1) Short-Range Ballistic Missiles Ballistic Missiles launched from road-mobile launch vehicles. These are typically under Realm Aero Service Missileer Corps Wings (an OF-4 command) that can attach to Fleet Expeditionary or Realm Guard task forces or corps (OF-7 or OF-8 commands) during combat operations.
 * 2) Short-Range Ballistic Missiles Ballistic Missiles launched from surface warships and submachines maintained by individual Realm Armada Sea Divisions (an OF-8 command).
 * 3) Nuclear artillery under the Realm Guard Ordnance Corps in specialized Cannoneer Regiments (an OF-5 command). Some of these units, particularly those stationed in western Tiperyn (near Airgialla) and southwestern Tiperyn (near Ovancia) come under command of the Aero Service Missileer Corps as strategic assets.

Naval and marine capability
The Tiperyn Realm Armada is key to the Tiperyn military's force projection, expeditionary warfare, and nuclear capability. The Realm Armada is the Realm Defence's largest branch with 1,049,091 total personnel including the High Seas Fleet, Fleet Auxiliary, Fleet Expeditionary and shore establishments. Overall the Realm Armada is divided into four sea divisions that are responsible for the Balearic Sea, Eurybian Sea, Iapetus Ocean and Tethys Ocean. Each sea division is assigned to a number of shore establishments and are composed of elements from the High Seas Fleet, Fleet Auxiliary and Fleet Expeditionary.

Its primary forces include four conventionally-powered aircraft carriers (1 active, 2 reserve, 1 deep maintenance) and enough landing helicopter dock (LHD) and landing helicopter assault (LHA) ships that enable each of the Realm Armada's four sea divisions land one Shock Battalion of the Sea Division Marine Strike Brigade within 48 hours and the remainder of the brigade within 5 days. The Balearic Sea Division has more amphibious capability than the other sea divisions, outfitted with two Marine Strike Brigades rather than one and enough warships to land one brigade within 48 hours. This is due to the sea division's proximity to Ovancia and Legantus. Additionally, each sea division is equipped with a complement of ballistic missile submarines that act as a pillar of Tiperyn's strategic and tactical nuclear capability. Major naval bases and dry docks are maintained worldwide to support this force, the largest overseas examples being in Eureka, Nasiria, Koryeo, and Agrana y Griegro.

As the Realm Armada is a federal force under the direct command of the Admiralty Board—a ministry-level body—and forces are not raised from duchies and principalities as Realm Guard regiments are, the Realm Armada and its subordinate Fleet Expeditionary can be wielded by the monarch without the approval of lower nobles. By law, Tiperyn is not at war unless the Realm Guard has to be mobilized. The mobilization itself comes with a political cost and has in the past been met with staunch opposition from lower nobility if a conflict proved to be unpopular. This is why the Fleet Expeditionary has been Tiperyn's primary expeditionary force since the end of the Kesh War, with most ground combat during the ongoing Nasiri Civil War being carried out by the Marines.