Both sides are facing the issue of how to sustain their costly war of attrition — a conflict that started with Russia's full-scale invasion of Ukraine in February 2022 and that shows no signs of a resolution.

Ukraine's military says it has carried out a strike on a large oil terminal off the coast of the occupied Crimean Peninsula, the latest in a wave of attacks targeting Russian-controlled energy facilities.

Ukrainian forces launched a missile attack on an oil terminal in Russian-occupied Crimea overnight, the military said.