Estonia
Exercise Hedgehog: 30-plus UK tanks take part in NATO exercise near Russian border
More than 30 Challenger 2 tanks and 60 Warrior armoured vehicles are taking part in a NATO exercise near Russia's border.
About 15,000 NATO troops are deployed on Exercise Hedgehog, which takes place less than 100km from Estonia's border with Russia.
Russia's invasion of Ukraine, which began with tanks and armoured vehicles pouring over the border, has forced military planners to reconsider the future of heavy weapons.