Russia warned Britain on August 18 that it would face consequences for supplying drones to Ukraine that have been used to launch attacks on Russian territory. [1, 2, 3] The Russian Embassy in London said, “London’s actions will inevitably carry consequences for which it will have to answer. The deeper its involvement in the conflict and the greater its support for Kiev’s terrorist machinery, the higher the price it will pay.” [1] British-made drones have reportedly carried out long-range strikes on targets inside Russia for the first time. [1, 2, 3]

Moscow reported that since August 18 and into early August 19, at least 637 drones were launched against Moscow, with 197 shot down by Russian air defenses. [3] Russian officials also said Ukrainian drone strikes killed at least seven people in Russia overnight, while Russian missile strikes killed 10 people in Ukraine's Kharkiv region. [2] Russian authorities said hundreds of Ukrainian drones have been shot down over multiple regions, including 598 recently and 197 near Moscow alone. [2, 3]

Ukraine has increased its long-range drone and missile attacks on Russian military industries, energy infrastructure, logistics, and other strategic targets. [2, 3] Britain has pledged to supply Ukraine with 150,000 drones by the end of 2026, backed by £752 million ($996 million) in funding. [1] The British Ministry of Defence has not confirmed whether British drones were used inside Russia. [1, 3]

After the Russian embassy warning, a UK Defence Ministry spokesperson said Britain stands “shoulder to shoulder with Ukraine” and is committed to providing Ukraine with the equipment it needs to defend itself against what Britain calls Putin's illegal invasion. [1] The spokesperson added, "Russia should be in no doubt about the resolve of this government to stand against Russian aggression, in Ukraine and against the UK and our allies." [4] UK Prime Minister Andy Burnham reaffirmed full support for Ukraine despite Russian threats, saying, "This is the UK doing what it has long said it would do, which is to support Ukraine 100 percent against this illegal war led by Vladimir Putin." [3, 4]

Former Russian Deputy Foreign Minister Andrei Fedorov hinted at possible retaliatory Russian attacks on the UK but doubted NATO would respond forcefully. [3] Meanwhile, Poland announced preparations for possible war following Russian threats amid the Ukraine conflict. [5]

The situation remains tense with drone and missile attacks on both sides. Russia’s embassy warning followed escalating drone launches last weekend. Britain continues its drone supply to Ukraine under a funding plan scheduled to deliver 150,000 drones by the end of 2026. [1]