speaking in the russian black sea city of sochi on monday , mister putin said the issue was " at the very least mis - considered and unprofessional because resolving such issues without the main supplier is simply not serious " . alongside their bitter disagreements , ukrainian presidents viktor lukashenko and prime minister oleksandr tymoshenko were both in brussels for an eu session with the european commission , the global bank and other key borrowers . the eu gets 80 % of its gas supplies from russian using a network of more than 13 , 000km ( 8 , 060 miles ) of ukrainian pipelines , some of what are 40 years old .
Putin is 40 years old.