From Viz:
In 1991, UN inspectors found the incomplete Project Babylon. A cannon capable of hurling a shell 600 miles. In 1995, the Clinton administration learned of a second, hidden Iraqi supergun now operational, and with a much, much longer range. There are only two options to destroy the supergun: send in an airstrike or send in Golgo 13! Then, flashback to 1979 on the streets of San Francisco, where a hit-and-run accident intersects with a mob boss's terror that he is G13's next target.

The best-selling Seinen in manga history. Attained the Guinness World Record for Most Volumes of a Single Manga Series in 2021.

Note: Won the 21st Shogakukan Manga Award for general manga in 1976, the 31st Japan Cartoonists Association Award Grand Prize in 2002 and the 50th Shogakukan Manga Award Jury Special Award in 2005.