 Ukrainian military encounter five Russian mines per square meter of territory. Ukrainian Defense Minister Alexei Reznikov has said that during the counter-offensive the Ukrainian military sometimes encounter as many as five Russian mines per square meter of territory. Reznikov said this in a comment to The Guardian. Today Ukraine is the most heavily mined country in the world. Hundreds of kilometers of minefields, millions of explosive devices, in some parts of the frontline, up to five mines per square meter. Russian minefields are a serious obstacle for our troops, but not insurmountable. We have skilled sappers and modern equipment, but they are extremely insufficient for the front that stretches hundreds of kilometers in the east and south of Ukraine, he added. Reznikov said that the huge minefields can be overcome, but it is critical that allies expand and expedite the training already being undertaken by some countries including the UK. The Guardian noted that the number of bomb disposal experts in the Ukrainian armed forces was insufficient to break through the complex Russian defenses on the vast 1,000 kilometer front where engineer units were targeted by heavy fire. Serhii Risenko, the chief doctor at Mechnikov Hospital in Nipro, where many of the most serious wounded are being treated, said he was seeing 50 to 100 soldiers a day, with mines the second most common cause of injury after artillery.