Tanks, drones and 1000 soldiers… where is the Kursk area where Ukrainian army has entered, first attack inside the border of Russia

Ukraine, which has been a victim of Russian attacks since the beginning of the war, has now started attacking Russia. Recently, the Ukrainian army entered the Russian border and caused massive destruction in the city of Kursk. Russia’s Kursk is 85 miles (about 140 kilometers) away from Ukraine’s important city Kharkiv. This city is situated