Panels from the Ka-Zar story "The Battle of New Britannia!" in Astonishing Tales (1970 series) #8 (October 1971), script by Roy Thomas and Gary Friedrich, pencils by Herb Trimpe, inks by Tom Sutton, letters by Artie Simek
Here's a hint: her name is Barbara!
Want another hint? Okay: She was married to one of the premier heroes of the Marvel Universe, and she's also a superhero herself?
Give up yet? Okay, her last name is Morse. Barbara Morse. You may know her instead, though, as Bobbi Morse, the mellifluous Mockingbird!, here in only her third appearance! It'll be a few issues before she gains a last name and some time before she becomes Agent 19 and then the Huntress and then Mockingbird, but now she's a Marvel Legend! Even though she spent several years kidnapped by Skrulls and yeah I'm gonna forget about that story.
Cover of Hawkeye (1983 series) #3 (November 1983), pencils by Mark Gruenwald, inks by Bob Layton
So remember; punch Nazis! Just like Barbara!