Air Operations, Carolines

During the night, 868th Heavy Bomb Squadron SB-24s attack airfields and Japanese defenses in the Palau Islands.

Air Operations, CBI

• 12 10th Air Force P-47s attack road targets near Kutkai.
• 8 P-47s attack Mawhun and targets of opportunity along the Irrawaddy River.
• 8 P-47s sweep the Irrawaddy River between Bhamo and Katha.
• A 459th Fighter Squadron P-38 downs a Ki-43 'Oscar' fighter over Rangoon at 1105 hours.

• 308th Heavy Bomb Group B-24s attack vessels off the Pescadore Islands.

Air Operations, Europe

The US 8th Air Force, on its return flight to Italy, bombs the great Diosgyoer steelworks in Hungary.

• 140 aircraft are sent to hit the Nordstern oil plant at Gelsenkirchen. In this total are 102 Halifaxes of No. 4 Group and 28 Lancasters and 10 Mosquitos of No. 8 Group. Large explosions are seen through the smoke screen.
• 2 Halifaxes are lost.
• 98 Halifaxes and 20 Lancasters of Nos. 6 and 8 Groups attack Osnabrück. The mission is to cut railway communications in the area. The marking and bombing are accurate but there are no details on the results.
• There are no losses.

• There are 13 RCM sorties.

• 36 Mosquitos are sent to Berlin and 3 to Karlsruhe, and there are 41 Mosquito patrols and 29 RCM sorties.
• 2 Mosquitos are lost on the Berlin raid.

• Of 1,026 8th Air Force heavy bombers dispatched against oil-industry targets in southern Germany, 790 complete attacks against five synthetic-oil plants and oil refineries, an airdrome, two munitins dumps, and numerous targets of opportunity.
• Several hundred escort fighters strafe gound targets of opportunity following release from escort duties. VIII Fighter Command escort pilots down 33 Bf-109s over Germany between 1145 and 1245 hours.
• 15 heavy bombers and 8 escort fighters are lost

• 73 8th Air Force FRANTIC bombers and 63 P-51 escorts returning from the Septembe 11 mission to the Soviet Union attack a steel plant at Diosgyoer with 263 tons of bombs on the way to England via Italy.
• It is decided to discontinue Operation FRANTIC because the air bases allotted to the USAAF in the Soviet Union are so far behind the front lines and because of operational problems arising out of the Soviet government's blatant mistrust of the American airmen.

• IX Bomber Command B-26s dispense leaflets over coastal areas of northern France and Belgium.
• XIX TAC fighter-bombers assist a Frence Army armored division in destroying 60 German tanks near Vittel.
• 9th Air Force fighters and fighter-bombers mount numerous missins in direct support of US Army ground forces around Brest, Metz, and Nancy.

• As the XIX TAC opens its new rail-interdiction campaign, fighter-bombers mount numerous armed-reconnaissance missions in the Aachen, Cologne, Koblenz, Linz/Rhine, and Wahn areas.

• In an effort to delay German Army efforts to establish a stronghold in the Rhone River valley near Belfort, P-47 fighter-bombers of the 12th Air Force's 27th Fighter Group, based in southern France, mount 58 sorties in 13 separate missions, in the course of which 107 vehicles, 12 locomotives, 30 horse-drawn artillery pieces, and several railroad guns are destroyed.

• 12th Air Force B-25s cut the Milan-Verona rail line by destroying a bridge.
• B-25s and B-26s attack defensive positions and gun emplacements north of Florence.
• XII TAC fighter-bombers attack bridges, rail lines, locomotives, and rolling stock throughout northern Italy.

• 15th Air Force heavy bombers attack a marshalling yard at Vrutky.

• 15th Air Force B-24s attack an oil refinery at Odertal.
• B-17s attack an oil refinery at Blechhammer.

• 15th Air Force B-24s attack a viaduct and several bridges.

• 15th Air Force B-24s attack a rubber factory and oil refinery at Oswiecim (Auschwitz) and industrial targets at Crakow.

Air Operations, Japan

During the night, 3 28th Composite Group B-24s attack the airfield at Kurabu Cape and nearby shipping.

Air Operations, New Guinea

• V Bomber Command B-25s attack the airfield at Langgoer.
• A-20s and V Fighter Command fighter-bombers attack two airfields on Efman Island.
• B-25s, A-20s, and fighter-bombers attack the airfields at Mano-kwari and Ransiki, and anti=aircraft batteries near the airfield at Babo.

Air Operations, Philippines

• Virtually unopposed, carrier aircraft from Task Force 38 mount numerous attacks against targets throughout the central Philippines.
• 2 VF-21 F6Fs down a P1Y 'Galaxy' bomber at sea at 0629 hours.
• Carrier-based F6Fs (and 2 dive-bomber crews from VB-8 and VB-2) down 1 F1M 'Pete' reconnaissance plane, 2 G4Ms 'Betty' bombers, 2 Ki-46 'Dinah' reconnaissance planes, and 80 fighters over and around Negros between 0710 and 0945 hours.
• VF-13 F6Fs down 5 fighters over Legaspi (Luzon) at 0810 hours.
• 3VF(N)-41 F6Fs down an G4M 'Betty' bomber at sea at 0812 hours.
• A VF(N)-76 F4U downs a G4M 'Betty' bomber near Luzon at 1415 hours.

Allied Planning

Gen Eisenhower informs Field Marshal Montgomery that his 21st Army Group will receive an additional 1,000 tons of supplies per day as the main effort. Reinforced by the 1st Allied Airborne Army and part of the 12th Army Group, his mission is to secure a bridgehead across the Rhine River in Holland and advance on the flank of German forces now occupying the defenses of the West Wall (or Siegfried Line) and capture the port of Antwerp. Bradley's 12th Army Group is to conduct limited attacks to draw German forces away from the main attack. The operation is called MARKET GARDEN.

Atlantic

4 US warships including the destroyer Warrington (DD-383) and the Coast Guard cutters Bedloe (WSC-128) and Jackson (WSC-142) and a Liberty ship, previously torpedoed by U-518 are lost in a hurricane off the East Coast.

Britain, Home Front

The death of William Heath Robinson, an eccentric cartoonist, is reported.

CBI

Gen Joseph Stilwell has a meeting with emissaries from the Chinese Communist army, and also inspects the Chinese positions at Kweilin.

Gen Hurley drafts US proposals for the appointmen of Gen Stilwell to the post of Field Commander of the Ground and Air Forces of the Republic of China and a directive for Chiang Kai-shek to Gen Stilwell. The Generalissimo receives them on or before 16 September.

Eastern Front

The 2nd Belorussian Front takes Lomza on the Narew west of Bialystok, a German strongpoint for the defense of East Prussia and Warsaw.

The Soviets respond to British and American pressure and begin supply drops to the Polish Home Army (AK) forces fighting in Warsaw regarded by the Poles as too little too late.

The Leningrad, 1st, 2nd and 3rd Baltic Fronts prepare to launch a new offensive aimed at destroying the 18th and 16th Armies between Riga and Narva. While the Leningrad Front drives in from the north, the 2nd and 3rd Baltic Fronts will pin down the German forces south of Lake Peipus. The 1st Baltic Front will sweep around the right wing of the 16th Army to regain the Baltic coast west of Riga and repeat the isolation of the 2 armies.

The Leningrad Front's 2nd Shock, 59th and 8th Armies along the Narva have 195,000 men, the 1st Baltic Front 621,000 (in the 4th Shock, 6th Guards, 51st, 43rd, 2nd Guards and 39th Armies), the 2nd Baltic 339,000 men (in the 10th Guards, 3rd Shock and 22nd Armies) and the 3rd Baltic Front 345,000 men (in the 42nd, 67th, 1st Shock abd 54th Armies). The 3 Baltic fronts also have 17,000 arty pieces, 3,000 tanks and 2,600 aircraft. The Army Group North has around 400,000 ment with 400 panzers.

The 49th Army crosses the Narew and takes Lomza, while the 47th Army clears the Praga suburb of Warsaw but fails to link up with the Polish Home Army.

Italy

In the US 5th Army's IV Corps area, the 1st Armored Division, ordered to be prepared to move all but one combat command to the II Corps zone on 48 hours' notice, can do no more than patrol aggressively within its broad Serchio Valley sector. The South African 6th Armored Division, making the main effort of the corps in support of the II Corps to the right, continues a full-scale attack on the hills north of Prato and takes Monte Acuto.

The II Corps begins a general assault to force the Il Giogo Pass and thus gain entrance to the Po Valley. The 85th Division's 338th Infantry, attempting to attack through the 363rd Infantry of the 91st Division and make a main effort against Monte Altuzzo, is unable to locate the 363rd and comes to a halt well short of the objective under stiff opposition. To the right, the 339th Infantry attempts in vain to take Monte Veruca while on the left, the 363rd Infantry concentrates on Monte Monticelli but is unable to reach the crest. The 362nd Infantry begins a drive toward Futa Pass. In a supporting role on the left flank of the corps, the 34th Division batters at Torricella Hill, below Monte Coroncina and Monte Frassino.

In the British XIII Corps area, the 1st Division begins an attack on the heights flanking Highway 6521 (Poggio Prefetto and Monte Guivigiana), where the enemy is firmly established. The Indian 8th Division takes Monte Veruca and thrusts almost to the top of Alpe di Vitigliano. The 6th Armored Division patrols actively on the right flank of the corps.

In the British 8th Army area, the V Corps and Canadian I Corps gain a firm hold on the San Savino-Coriano ridge, as the 1st Armored Division of the V Corps takes San Savino and the Canadian 5th Armored Division of the Canadian I Corps, Coriano and the northern spur of the ridge.

Moluccas

The US invasion force for Morotai is on its way.

Pacific

• The Japanese submarine chaser No. 55 is sunk by US carrier-based aircraft in the Philippine Islands area.
• The US high speed minesweeper Perry (DMS-17) is sunk by a mine just off the southeast coast of Angaur, in the southern Palaus.
• The US submarine Sunfish (SS-281) sinks the Japanese army cargo ship Etashima Maru (6435t) and damages the army cargo ship Gyoku Maru (6854t).

Palau Islands

Over the next 2 days, the American forces begin their preliminary bombardment of Peleliu and Angaur. Adm Jesse B. Oldendorf leads 5 battleships, 9 cruisers and numerous destroyers in this operation. Also in support is an escort carrier force which varies in strength at different times form 7 to 11 ships. Minesweeping operations also begin to clear the approach to the islands.

Western Front

The German garrison at Brest refuses to surrender. Units of the US 3rd Army continue their offensive along the line of the Moselle from Thionville to Epinal. The US 3rd Army takes Neufchâteau. French troops of the 3rd and 7th Armies make contact at Chatillon-sur-Seine. Canadian 4th Arm Div elements cross the Leopold Canal near Bruges.[WE][SF]

Eisenhower orders the capture of the Ruhr basin and a deep-water port, either Antwerp or Rotterdam, to facilitate the flow of supplies.

Images from September 13, 1944

Abandoned German 88-mm Anti-tank Gun

Destroyed German Jagdpanther

Passing Abandoned German Gun

Following the Assault on Le Havre

Flak Hit on a B-17G

First Crossings of the Moselle

Having Tea Beside Upended Tank

Royal Artillery in Action