Beginning in July 2022, a series of explosions and fires occurred on the Russian-occupied Crimean Peninsula from where the Russian Army had launched its offensive on Southern Ukraine during the Russian invasion of Ukraine. Occupied since 2014, Crimea was a base for the subsequent Russian occupation of Kherson Oblast and Russian occupation of Zaporizhzhia Oblast. The Ukrainian government has not accepted responsibility for all of the attacks.

There have been attacks in mainland Russia as a result of the Russian invasion of Ukraine, which began on 24 February 2022. The main targets have been the military, the arms industry and the oil industry. Many of the attacks have been drone strikes, firebombing, and rail sabotage. The Ukrainian intelligence services have acknowledged carrying out some of these attacks. Others have been carried out by anti-war activists in Russia. There has also been cross-border shelling, missile strikes and ground raids from Ukraine, mainly in the Belgorod, Kursk and Bryansk oblasts. Several times, Ukrainian-backed armed groups have launched incursions from Ukraine into Russia, captured border villages and battled the Russian military. While Ukraine has supported these ground incursions, it has denied direct involvement.