blintzklieg’d!!! 
There’s an internet meme, where an image has a quote from a character in a work of (usually science) fiction, attributed to a different character from a different work of fiction, and showing the picture of a third character from a third work of fiction. Maybe that’s the effect he was going for.
(OK, probably not, but that’s what that quote made me think of.)
Without checking:
German: lightning-something, I think. lightning strike? maybe?
Between the wars, France spent a lot of time, effort, and money prepping for another trench war on/near the German border. When the war actually came, Germany didn’t bother with the whole trench thing and instead used a combination of air strikes and heavy cavalry in a hard, fast, devastating attack.
Today it is used metaphorically for an all out attack on something usually involving some level of surprise or suddenness and superior tech.
With checking:
I wasn’t completely wrong.
I forgot the translation of “lightning war,” but remembered the rest.
And is it wrong that I’m giggling while picturing Stonewall Jackson singing about his magic helmet?
I don’t know the literal translation. It is a German term from World War 2 for fast-moving attacks that were intended to quickly take territory and win the war.
Blitzkrieg: the German term for Stonewall Jackson’s use of 1920’s-style death rays to attack and hold the Marianas Trench for 20 minutes in the 1960’s.
Jackson?
Forget it, he’s rolling.
Lighting War - A German phrase for those special times when a coordinated, flexible attacker with an aggressive plan meets a disjount, calcified defender with no plan.
It refers to an lightning assault against a fortified line with armor units with the intention of forcing a breakthrough, after which point the attacking force is able to flank and attack opposing units from behind their own lines. It’s German, and refers to the tactics used by the Germans’ attack on Poland in 1939.
All this from memory, because much of my misspent youth was misspent on this game.
A tactic used by Nazi Germany early in WWII that employed tanks, air power and mechanized infrantry to quickly overwhelm, or bypass nations’ defenses.
To be fair, the Germans did study confederate tactics, Irwin Rommel came to Monterey, VA to study Stonewall Jackson’s campaign, but I don’t the author of your memo knew that.
Blitzkrieg is a German word, literally “lightning war.” It refers to the integated air/land attacks first used by Germany in Poland and later in Belgium and France, with armor, infantry and aircraft attacks coordinated an an until then unprecedented fashion.
Missed the edit window, but after some internet research it turns out the story of Erwin Rommel’s travels to VA are not only apocryphal, they might not even be true.
Without reading the rest of the thread:
It was the first systematic coordination of tanks, other ground forces, and aircraft surrounding and attacking a specific target.
Most people confuse it with the long, unrelenting really all-out bombing run on England by the Germans. “The Blitz” is not short for “Blitzkrieg.”
I’ve read all the replies, so let me inject some 21st century into this discussion.
Blitzkrieg is that word used by The Ramones in their song “Blitzkrieg Pop”
But more commonly, Blitzkrieg is the longer version of “Blitz,” which is a football term for swarming the quarterback with overwhelming force and speed.
For the average person today, the second definition is the one that they know. I’m sure most are familiar with it being German in origin (it just sounds German, ya know?), but what war it comes from and the exact military applications likely don’t matter to Joe Internet.
Perhaps he was referring to the Battle of Chancellorsville, in which Jackson took the fight to the enemy instead of waiting for them to reach him. Did he do so swiftly? Ehhhh, I suppose so.
Hit them fast with everything you got.
Would Joe Internet know the song is actually called, “Blitzkrieg Bop”? 
Trivia Q: Which NWOBHM band originally wrote and recorded the Metallica song “Blitzkrieg”?