Russia has dropped 27 guided bombs on Kursk Oblast, Ukraine's military claims.

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Russian aircraft have dropped 27 guided aerial bombs on settlements in embattled Kursk Oblast, Ukraine's General Staff said in its latest update on Aug.

21. Ukraine's Commander-in-Chief, Oleksandr Syrskyi, said that Kyiv had advanced between 28-35 kilometers (18-21 miles) into Russia's Kursk Oblast as the unprecedented incursion entered its third week. According to Syrskyi, Ukraine has captured 1,263 square kilometers (488 square miles) of Russian territory and 93 settlements.

Russian forces have conducted at least 17 airstrikes against Kursk Oblast, using guided aerial bombs, Ukraine's military said on Aug.

21. According to President Volodymyr Zelensky, Moscow launched a total of 750 guided aerial bombs on Ukrainian cities and villages last week. Guided aerial bombs, while having a shorter range than missiles, are cheaper to produce and are launched from aircraft within Russian territory or Russian-occupied territories, beyond the reach of Ukrainian air defense.

Russia also continues shelling border settlements in Ukraine's Sumy Oblast, which borders Russia's Kursk Oblast, including the villages of Porozok and Poznia. Ukrainian authorities are planning to evacuate a total of 45,000 residents from the region amid intensified Russian attacks. Air Force Commander Mykola Oleshchuk published a video on Aug.

21 purporting to show Ukrainian pilots' attacks on Russian troops who are "actively occupying civilian facilities" in Kursk Oblast. "We see everything, we know everything. Our precision bombs will get you everywhere," Oleshchuk said.

A video purporting to show Ukraine's attacks on Russia's military in Kursk Oblast. (Mykola Oleshchuk/Telegram)

Deputy Prime Minister Iryna Vereshchuk said on Aug.

14 that Ukraine's military is creating a "security zone" on Russian territory to protect Ukrainian border areas. Vereshchuk said that Ukraine would be conducting humanitarian operations in the area, including creating safe corridors for civilians to evacuate -- both toward Ukraine and to other parts of Russia. International humanitarian organizations will also be allowed to enter the area to support the civilian population and monitor the situation, she added.

Ukraine's 'buffer zone' in Kursk Oblast - here's what you need to know

Ukraine aims to establish a buffer zone in Russia's Kursk Oblast, President Volodymyr Zelensky said on Aug.

18, as he outlined some of the strategic aims of the ongoing operation. "It is now our primary task in defensive operations overall to destroy as much Russian war potential as possible and