The Harlem Hellfighters of WW1 fame were deployed as the 369th Coast Artillery Regiment (15th New York) in WW2.

Their service in WW2 was not only heroic, it was strategically vital...and their treatment that time was the forgetting of both.

1/
In 1943 the Harlem Hellfighters 369th regiment was broken up and organized into the 369th Anti-Aircraft Artillery Gun Battalion and the 870th Anti-Aircraft Artillery Automatic Weapons Battalion.

2/

museum.dmna.ny.gov/unit-history/c…
The African American 870th AAA AW Btn was shipped to Okinawa, Lt. Col. W. F. Lucas commanding.

The 870th was to guard one of the airfields to be built in Southern Okinawa after the island was over run at the end of Apr 1945.

The IJA & May rains put an end to that plan.
3/ ImageImage
870th AAA AW Btn was armed with 16 each 40m autocannons and M-51 quad-Maxon mount .50 caliber machine guns in four batteries with four of each weapons.
4/

niehorster.org/013_usa/44_org… ImageImage
When the 870th Harlem Hellfighters arrived at Okinawa. Their 40mm and .50 caliber weapons were taken away from them. They were issued rifles, carbines, machine guns, bazookas and mortars and sent to Kerama Retto.

The group of islands was a major Naval base with a problem.
5/ ImageImageImage
The problem was that the islands in the group had not been properly cleared of Japanese resistance by the assault troops.

While more than 350 IJA suicide boats were captured or destroyed at Kerama Retto. When the 77th Division infantry battalion was withdrawn. The garrison
6/ Image
...crewing them came out to contest American control of Kerama Retto.

On 11 May a landing party lead by USN Cmdr Drexler, the C.O. of LST Flotilla 47 went to Aka Shima and was ambushed by hold out Japanese soldiers.

Drexler's bayonetted body was recovered the next day.
7/ Image
Midnight 11/12 May a Japanese infantry force assaulted Tokashiki town with rifles, Bangalore torpedo's and satchel charges

On the 16 May 1945 at Zamami Shima a USMC SCR-270 radar fuel was set on fire by infiltrators.

The ensuing fire badly burned 3 officers and 31 enlisted.

8/ Image
With all of this going on, the 870th was converted to infantry to mop up the Japanese the 77th Infantry Division left behind.

This is a short description of their work from the late 1945 report Antiaircraft Activities of the Pacific War.
9/ Image
This is the Tenth Army After Action report Anti-aircraft Staff Section describing the 870th's infantry work in Kerama Retto.

10/ ImageImage
And this is the description of the 870th's infantry work in the article "Activities of the Tenth Army AAA," Anti-Aircraft Journal July-Aug 1949. See the passage from Pages 9 - 10 below.

11/ ImageImageImage
This map of the US Navy seaplane sectors searched from Kerama Retto gives you an idea of how vital the work of "Harlem's Hellfighters" was in securing the island group was in WW2...and how little recognized.

/End Image

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More from @TrentTelenko

24 Jul
One of the most difficult issues in researching & writing about electronic warfare in WW2’s Pacific Theater is it’s systematic exclusion from the USN’s official histories. This exclusion was as systematic was it was intentional.

1/
The war diaries of the US Navy are both digitized and available on the Fold3.com service.

A simple search on the radar decoy code name “Window” in the WW2 War Diaries gets thousands of hits.
2/
fold3.com
Window was one of the names for radar dipole decoys dropped from A/C, rockets, bombs and artillery.

The Japanese were both technically skilled and increasingly proficient in its use by 1945.

And, like those thousands of Fold3.com war diary hits, their efforts
3/
Read 16 tweets
8 Jul
For those of you interested in WW2 electronic warfare, there are Paul Woodage's (@WW2TV) earlier presentations with Matt Bone's radar hunting Typhoons here:

The Radar War Before D-Day ()

1/
And Paul's presentation with Thomas Withington's presentation with RAF 100 Group here: ()

2/
Plus a 7 July 2021 one just posted by the History Indoor channel titled

The Darkest Moonlit Night: RAF Bomber Command's raid on Nuremberg 30/31 March 1944 here:

()

3/
Read 4 tweets
7 Jul
Paul Woodage - @WW2TV - just streamed the latest social media presentation of the Section 22 Special Interest Group on his Youtube channel.

This thread is going to include the 36 slides that were presented so people can read them at their leisure


1/
Slide #1

2/
Slide #2

3/
Read 38 tweets
6 Jul
The Section 22 Special Interest Group's presentation on Gen MacArthur's secret radar hunters will be on WW2TV tomorrow, July 7, 2021.

Check it out.
Section 22 was a secret WW2 radar intelligence unit in the S.W. Pacific.

This tweet thread hosts an 82 slide information packet that was released over the six days prior to the Feb 2021 CIMSEC Bilgepumps podcast on Section 22.

These are the published articles of the Section 22 special Interest Group between Mar 2015 and Feb 2020.

Read 4 tweets
18 Jun
@idreesali114 General Mark Milley is deluding himself.

A UH-60M Blackhawk has a radius of action of 368 miles. The PLA Z-20 Blackhawk variant has improved 5-blade rotor system and more powerful engines.

It is 130 km from the Mainland to Northern Taiwan. ImageImage
@idreesali114 The capability of Mainland China to effect "bolt from the blue" coup de main vs. Taiwan grows with it's Z-20 fleet.

One hundred Z-20's isn't decisive.

Somewhere north of 300 Z-20's and things get dicey for Taiwan. Image
@idreesali114 At 1,000(+) Z-20, PLA can air lift a light infantry division (11,000 troops) to Taiwan every six hours.

And some portion of those Z-20's will be stealth helicopters.

The PLA will have 1,000 Z-20 no later than 2025.
thedrive.com/the-war-zone/4… ImageImage
Read 4 tweets
16 Jun
@Drachinifel
@AC_NavalHistory
@ArmouredCarrier

So...individual human vertical envelopment in the maritime, amphibious, & urban combat environment is a near term thing.

What can a section of Marines debarking a Merlin onto 200kg hoverboards below the radar horizon at 20km do?
Nor are squadies the only payload these multicopter "lift rings" can move around.

The Ukrainian “Thunder” loitering drone recce-ammunition uses the lift ring staging concept to lift it's munition and then acts as a radio relay
naturasigorta.com/ukrainian-loit…
Conceptually, staged drones are a partially disposable form of air to air refueling.

This reusable multi-copter staged munition drone concept certainly makes a USS Unicorn style VTOL aircraft & drone carrier a while lot more interesting.
Read 11 tweets

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