Nearly 1 million Russian soldiers have been killed or injured in the country’s full-scale invasion of Ukraine, according to a new study, a grisly measure of the human cost of Russian President’s Vladimir Putin’s unprovoked three-year assault on its neighbor.

A serviceman from the mobile air defence unit of the 115th Separate Mechanized Brigade of the Ukrainian Armed Forces fires a Browning machine gun towards a Russian drone during an overnight shift, amid Russia's attack on Ukraine,

Russia’s invasion force is expected to suffer more than 1 million casualties by the summer as a result of the Ukraine war, with around 250,000 troops already confirmed dead, according to a new study.

Drones are “ubiquitous, because they are quite useful, and they're demonstrating that every day in Ukraine,” one analyst told NBC News.

Peru's government has restored formal mining operations in northern parts of the country that were affected by violence, Defense Minister Walter Astudillo said on Wednesday.