Errata
German WW2 Archives
NARA
German WW2 records are available online at the US National Archives and Records Administration at the following links:
Armed Forces (OKW – only partially available): https://catalog.archives.gov/id/7820260
Army High Command (OKH): https://catalog.archives.gov/id/7821296
Military Districts (Wehrkreis): https://catalog.archives.gov/id/7825435
Army Groups (only partially available): https://catalog.archives.gov/id/7788370
Armies: https://catalog.archives.gov/id/12007587
Panzer Armies: https://catalog.archives.gov/id/7788523
Army Corps: https://catalog.archives.gov/id/12004195
Army Divisions: https://catalog.archives.gov/id/12004423
SS Records: https://catalog.archives.gov/id/7788697
Navy High Command: https://catalog.archives.gov/id/7818012
Other Navy Documents: https://catalog.archives.gov/id/315246058
Luftwaffe High Command: https://catalog.archives.gov/id/7788651
Reich Air Ministry: https://catalog.archives.gov/id/7787207
Von Rhoden Collection (Luftwaffe): https://catalog.archives.gov/id/12004872
Organization Todt: https://catalog.archives.gov/id/7787132
Ministry for Armaments and War Production: https://catalog.archives.gov/id/7773935
Ministry for Enlightenment and Propaganda: https://catalog.archives.gov/id/7741409
Miscellaneous: https://catalog.archives.gov/id/229630550
Italian Military Records: https://catalog.archives.gov/id/12007155
Searching for Records
To search for a specific record, you will need to consult one of the German Guides. The German Guides associated with each topic are listed here (look for the “GG” next to the topic): https://www.archives.gov/research/captured-german-records/foreign-records-seized.html#virginia
Once you determine the guide you need, you can find it using this search query: https://catalog.archives.gov/search-within/176887728?q=German%20Guides – note that the German Guides are often buried in unrelated reels.
The guide will list the roll for that record, which you can find by navigating to the identical “reel” in the link associated with that topic above.
German Guides
German Guide 1-5: https://catalog.archives.gov/id/178381511
German Guide 6-14: https://catalog.archives.gov/id/178382475
German Guide 15-20: https://catalog.archives.gov/id/178384180
German Guide 21-33: https://catalog.archives.gov/id/178385770
German Guide 34-37: https://catalog.archives.gov/id/178387049
German Guide 38-39: https://catalog.archives.gov/id/178388315
German Guide 40-45: https://catalog.archives.gov/id/178389356
German Guide 46-49: https://catalog.archives.gov/id/178390767
German Guide 53-55: https://catalog.archives.gov/id/178393247
German Guide 56-59: https://catalog.archives.gov/id/178394449
German Guide 60-65: https://catalog.archives.gov/id/178407998
German Guide 66-69: https://catalog.archives.gov/id/178408540
German Guide 70-72: https://catalog.archives.gov/id/178409010
German Guide 73-75: https://catalog.archives.gov/id/178409477
German Guide 76-80: https://catalog.archives.gov/id/178409980
Bundesarchiv Militärarchiv
The military archives in Freiburg, Germany can be searched online through Invenio at the following website:
https://invenio.bundesarchiv.de/invenio/login.xhtml
There is no need to register. Simply click on the top button,"Suche ohne Anmeldung":

On the next page, you can browse the German military archives by navigating to "Norddeutscher Bund und Deutsches Reich (1866-1945)":

If you know the signature of the specific file you are looking for (e.g., "RH 2/94" for the Marcks Plan), click on the "Suche" page and enter the signature under "Signatur" and click on "Suchen". Note that you should omit "BA-MA" when entering the signature.
