The trench coat was made as an alternative to the great coat worn by French and British soldiers in WW1. Thomas Burberry made the first trench coat in 1920.

Trench

"my trench coat was lost"

Storm shadow is played by Byung-Hun lee in the gi Joe movie. In this movie he where's a Soviet trench coat. This is a trench coat issued from the Russian military. Some believe that storm shadows movements were some what restricted because he was wearing this trench coat.

Herr Hitler was an introvert having a poor personality suffering of inferior personality. To cover up his shortcoming he always wore a trench coat to influence his troops with a look of ever-readiness with a trench coat.