Russian military presence in Transnistria

The Russian-occupied territories of Ukraine are areas of southern and eastern Ukraine that are controlled by Russia as a result of the Russo-Ukrainian War and the ongoing invasion. In Ukrainian law, they are defined as the "temporarily occupied territories". As of 2024, Russia occupies almost 20% of Ukraine and about 3 to 3.5 million Ukrainians are estimated to be living under occupation; since the invasion, the occupied territories lost roughly half of their population. The United Nations Human Rights Office reports that Russia is committing severe human rights violations in occupied Ukraine, including arbitrary detentions, enforced disappearances, torture, crackdown on peaceful protest and freedom of speech, enforced Russification, passportization, indoctrination of children, and suppression of Ukrainian language and culture.

The occupation began in 2014 with Russia's invasion and annexation of Crimea, and its de facto takeover of Ukraine's Donbas during a war in eastern Ukraine. In 2022, Russia launched a full-scale invasion. However, due to fierce Ukrainian resistance and logistical challenges (e.g. the stalled Russian Kyiv convoy), the Russian Armed Forces retreated from northern Ukraine in early April. In September 2022, Ukrainian forces launched the Kharkiv counteroffensive and liberated most of that oblast. Another southern counteroffensive resulted in the liberation of Kherson that November.

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.

Russian irredentism (Russian: русский ирредентизм) refers to territorial claims made by the Russian Federation to regions that were historically part of the Russian Empire and the Soviet Union, which Russian nationalists regard as part of the "Russian world". It seeks to create a Greater Russia by politically incorporating ethnic Russians and Russian speakers living in territories bordering Russia. This ideology has been significantly defined by the regime of Vladimir Putin, who has governed the country since 1999. It is linked to Russian neo-imperialism.

Russian troops currently occupy parts of three neighbouring countries: southern and eastern Ukraine, Abkhazia and South Ossetia in Georgia, and the Transnistria region of Moldova. Since it began in 2014, the Russo-Ukrainian War has been described by much of the international community as being a culmination of Russia's irredentist policies towards Ukraine. Examples of these irredentist policies being implemented in this conflict include the Russian annexation of Crimea in 2014 and the ongoing Russian invasion of Ukraine, which saw the Russian annexation of southeastern Ukraine in 2022.