Erich Klinsmann

Erich Klinsmann, callsign Reiher (Belkan/German for "Heron"), was a mysterious Belkan ace pilot whose Assault Records entry (#101) in Ace Combat Zero: The Belkan War simply reads "Detailed information about this pilot is unavailable."

In-game appearance
Klinsmann only appears in mission 10 ("Mayhem / Operation Battle-Axe") alongside the Dietrich Kellerman's Silber Squadron on Ace Difficulty if the player follows the Knight Ace Style. He flies a Su-37 Terminator with a custom paint scheme highly reminiscent of the Erusean Yellow Squadron's. His Assault Records entry lists him as "Shot Down" (rather than "MIA" or "KIA"), meaning that he was confirmed alive after Operation Battle-Axe.

Speculation
It has been speculated that Erich Klinsmann is the former identity of Yellow 13, who led the Erusean Yellow Squadron during the Usean Continental War, as depicted in Ace Combat 04: Shattered Skies.