Paris is the capital city of France.
Having come to his senses, the Eukarian Shockwave fled to Paris to hide and regain his strength. He remained there even as World War II broke out before he was tracked down by Centurion, who now believed all Cybertronians had to die, in 1943. Their battle attracted several IRON Troopers.
That same year, the Screaming Eagles arrived in Paris to join forces with the European Resistance. Sgt. Savage and Garrison Kreiger bore witness to the fight between the two Eukarians before they left the city with the victorious Centurion to try and find the wreckage of the Axalon.