Transnistria War in the context of "Ad hoc"

Transnistria, officially known as the Pridnestrovian Moldavian Republic (PMR) and locally as Pridnestrovie, is a landlocked breakaway state internationally recognised as part of Moldova. It controls most of the narrow strip of land between the Dniester river and the Moldova–Ukraine border, as well as some land on the other side of the river's bank. Its capital and largest city is Tiraspol. Transnistria is officially designated by the Republic of Moldova as the Administrative-Territorial Units of the Left Bank of the Dniester (Romanian: Unitățile Administrativ-Teritoriale din stînga Nistrului) or as Stînga Nistrului ("Left (Bank) of the Dniester").

The region's origins can be traced to the Moldavian Autonomous Soviet Socialist Republic (MASSR), which was formed in 1924 within the Ukrainian SSR. During World War II, the Soviet Union took parts of the MASSR, which was dissolved, and of the Kingdom of Romania's Bessarabia to form the Moldavian Soviet Socialist Republic in 1940. The present history of the region dates to 1990, during the dissolution of the Soviet Union, when the Pridnestrovian Moldavian Soviet Socialist Republic was established in hopes that it would remain within the Soviet Union should Moldova seek unification with Romania or independence, the latter occurring in August 1991. Shortly afterwards, a military conflict between the two parties started in March 1992 and concluded with a ceasefire in July that year.

The Transnistria conflict (Romanian: Conflictul din Transnistria; Russian: Приднестровский конфликт, romanized: Pridnestrovsky konflikt; Ukrainian: Придністровський конфлікт, romanized: Prydnistrovskyi konflikt) is an ongoing frozen conflict between Moldova and the unrecognized state of Transnistria. Its most active phase was the Transnistria War. There have been several unsuccessful attempts to resolve the conflict. The conflict may be considered to have started on 2 September 1990, when Transnistria made a formal sovereignty declaration from Moldova (then part of the Soviet Union).

Transnistria is internationally recognized as a part of Moldova. It has diplomatic recognition only from two Russian-backed separatist states: Abkhazia and South Ossetia.

The Cobasna ammunition depot, formally the 1411th Artillery Ammunition Depot (Romanian: Depozitul de muniții de artilerie nr. 1411; Russian: 1411-й артиллерийский склад боеприпасов, romanized: 1411-y artilleriyskiy sklad boyepripasov), is a large ammunition depot located in the village of Cobasna. Legally and internationally recognized as part of Moldova as a whole, the unrecognized breakaway state of Transnistria controls the village and the ammunition depot and has denied access to international observers, an exception being the Russian military forces located in the region ever since the end of the Transnistria War in 1992. Outside access to the ammunition depot is effectively prohibited. Only the Russian and Transnistrian authorities have detailed information regarding the amount and state of the stored weapons.