the allied advance in the pacific
DESCRIPTION
THE ALLIED ADVANCE IN THE PACIFIC. ISLAND-HOPPING TOWARDS JAPAN, 1942-44. IMPORTANT DATES. AUG., 1942- FEB., 1943: U.S. ASSAULTS / RETAKES GUADALCANAL NOV.,1942- JAN.,1943: ALLIED CAMPAIGN / CONQUEST OF NEW GUINEA APRIL, 1943 – JUNE, 1944: OPERATION CARTWHEEL - PowerPoint PPT PresentationTRANSCRIPT
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THE ALLIED ADVANCE IN THE PACIFIC
ISLAND-HOPPING TOWARDS JAPAN, 1942-44
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AUG., 1942- FEB., 1943:◦ U.S. ASSAULTS / RETAKES GUADALCANAL
NOV.,1942- JAN.,1943: ◦ ALLIED CAMPAIGN / CONQUEST OF NEW GUINEA
APRIL, 1943 – JUNE, 1944:◦ OPERATION CARTWHEEL
NOV., 1943: BATTLE OF TARAWA JUNE,1944:
◦ THE BATTLE OF SAIPAN ◦ BATTLE OF THE PHILIPPINE SEA◦ “THE GREAT MARIANAS TURKEY SHOOT”
IMPORTANT DATES
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ADMIRAL CHESTER H. NIMITZ GENERAL DOUGLAS MacARTHUR ADMIRAL WILLIAM F. HALSEY THE SOLOMON ISLANDS GUADALCANAL “THE TOKYO EXPRESS” NEW GUINEA “ISLAND –HOPPING” OPERATION CARTWHEEL TARAWA “THE GREAT MARIANAS TURKEY SHOOT”
IMPORTANT TERMS / PEOPLE
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JUNE, 1942: BATTLE OF MIDWAY:◦ IJN IS DEALT 1ST MAJOR LOSS OF WWII◦ U.S. NAVY ACHIEVES 1ST MAJOR VICTORY IN PACIFIC◦ JAPANESE ADVANCE IN PACIFIC IS STOPPED
PROBLEM:◦ JAPANESE EMPIRE IS STILL AT IT’S GREATEST EXTENT◦ JAPAN STILL CONTROLS MOST MAJOR ISLANDS IN PACIFIC◦ AUSTRALIA IS STILL THREATENED BY JAPANESE◦ JAPAN HAS EXTENSIVE NETWORK OF FORTIFIED ISLAND
CHAINS THAT MUST BE TAKEN WHY?
NO INVASION OF JAPAN IS POSSIBLE UNTIL ISLANDS ARE TAKEN ISLANDS CAN BE USED AS NAVAL AND AIR BASES
RESULT? ALLIES MUST FORM PLAN TO…◦ ASSAULT / SEIZE JAPANESE-CONTROLLED ISLANDS◦ ASSAULT & POSSIBLY INVADE JAPAN
PACIFIC SITUATION, SUMMER, 1942
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PROBLEM: ◦ WHAT WAS THE BEST WAY TO DEFEAT JAPAN?◦ WHAT ROUTE SHOULD THE ALLIES TAKE TO ADVANCE
TOWARDS JAPAN? NORTHERN ROUTE VIA N. PACIFIC ISLANDS? SOUTHERN ROUTE THROUGH LARGER S.PACIFIC ISLANDS?
◦ DECISION: THE SOUTHERN ROUTE◦ WHY?
MORE ISLANDS THERE ISLANDS WERE CLOSER TO EACH OTHER MANY S. PACIFIC ISLANDS WERE LARGER SO…ISLANDS COULD BE BETTER USED FOR NAVAL / AIR BASES SOUTHERN ROUTE WAS CLOSER TO AUSTRALIA
SO WHAT?◦ AUSTRALIA WAS ALLIED W/ U.S.◦ AUSSIE MILITARY WAS VITAL TO VICTORY◦ MANY U.S. TROOPS WERE BEING TRAINED/SUPPLIED THERE
PLANNING THE ADVANCE
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U.S. / ALLIED PLAN TAKES SHAPE:◦ ALLIED FORCES WILL ADVANCE TOWARD JAPAN ON
TWO PARALLEL ROUTES◦ SOUTH-WEST PACIFIC ROUTE:
SOLOMON ISLANDS – NEW GUINEA – PHILIPPINES◦ CENTRAL PACIFIC ROUTE:
GILBERT ISLANDS – MARSHALL ISLANDS – MARIANA ISLANDS
WHAT FORCES WILL BE USED?:◦ S.W. PACIFIC ROUTE: U.S. ARMY, USMC, USN, AUST.◦ C. PACIFIC ROUTE: USN, USMC
WHO’S IN COMMAND?:◦ S.W. PACIFIC: DOUGLAS MacARTHUR◦ C. PACIFIC: CHESTER NIMITZ
PLANNING THE ADVANCE (cont’d.)
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ALLIED OFFENSIVE BEGINS THERE: WHY?◦ GUADALCANAL IS @ SOUTHERN END OF JAPANESE EMPIRE◦ ISLAND HAS AIRFIELD ALLIES NEED FOR FUTURE OPERATIONS◦ ISLAND CONTROLS SEA LANES TO AUSTRALIA
BOTH SIDES RECOGNIZE IT’S STRATEGIC IMPORTANCE◦ SO…ALLIES WANT IT / JAPANESE WANT TO KEEP IT
USMC GIVEN INITIAL TASK OF TAKING ISLAND (U.S.ARMY INVOLVED LATER ON)
AUG. ’42-FEB.,’43: VICIOUS FIGHTING ON ISLAND◦ JAPANESE DESPERATE TO HOLD ISLAND◦ THE “TOKYO EXPRESS” REINFORCES JAPANESE◦ U.S. NAVY DISRUPTS “TOKYO EXPRESS”
OTHER PROBLEMS:◦ TROPICAL CLIMATE◦ TROPICAL DISEASE (EX. MALARIA)◦ JUNGLE TERRAIN MAKES MOVEMENT DIFFICULT
FINAL RESULT: ◦ JAPANESE CAN’T MAINTAIN TROOPS / SUPPLIES◦ CASUALTIES GROW (EX. 22,000 KIA/MIA)◦ JAPANESE WITHDRAW FROM ISLAND / U.S. CONTROLS ISLAND
GUADALCANAL
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IJA INFANTRYMAN (L)AND IJA OFFICER (R)
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AERIAL PHOTOGRAPH, HENDERSON AIRFIELD, GUADALCANAL
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BATTLE MAP,“BLOODY RIDGE”,GUADALCANAL, SEPT., 1942
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U.S. MARINES ON “BLOODY RIDGE”
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JAPANESE KIA ON “BLOODY RIDGE”
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JAPANESE KIA, BLOODY RIDGE, GUADALCANAL, 1942
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NEW GUINEA: WHY IMPORTANT?◦ LOCATION
CLOSE TO AUSTRALIA LOCATED ON IMPORTANT SEA ROUTES TO JAPAN WAS USED AS A BASE FOR SUPPORTING SMALLER ISLAND GARRISONS
◦ JAPANESE OCCUPIED NORTHERN HALF OF ISLAND HAD FAILED TO OCCUPY SOUTHERN HALF WHY? JUNGLE & MOUNTAIN TERRAIN MADE MOVEMENT DIFFICULT
◦ 1942-43: U.S. / AUSSIES DECIDE TO PUSH JAPANESE OFF ISLAND◦ PROBLEM?
TERRAIN – OWEN STANLEY MTS. ARE DIFFICULT TO PASS JUNGLE TERRAIN CLIMATE DISEASE
◦ SOLUTION? MacARTHUR DECIDES ON SIMPLE PLAN: “OPERATION CARTWHEEL”
BYPASS JAPANESE STRONGHOLDS USE ARMY & NAVY TO CUT OFF JAPANESE SUPPLIES STARVE JAPANESE ONLY ATTACK AREAS THAT ARE VITAL TO ALLIED MOVEMENT
◦ RESULT? JAPANESE SUFFER MASSIVE LOSSES – 150,000 KIA / MIA ALLIES SEIZE NEW GUINEA
NEW GUINEA
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NEW GUINEA
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THE KOKODA TRAIL,NEW GUINEA, 1942
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AUSSIES ON THE KOKODA TRAIL, NEW GUINEA, 1942
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“STAIRCASE” CONSTRUCTION,KOKODA TRAIL, NEW GUINEA,1942-1943
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AUSSIES ASCENDING THE KOKODA TRIAL, 1942
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AUSSIES TAKING REST, KOKODA TRAIL, 1943
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AUSSIES ON THE KOKODA TRAIL, 1943
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AUSSIES IN NEW GUINEA, 1943
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NEW GUINEA U.S. OPERATIONS1942-43
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AUSSIES WITH CAPTURED JAPANESE EQUIPMENT, NEW GUINEA, 1943
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AUSSIE INFANTRY, NEW GUINEA, 1943
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AUSTRALIAN ANTI-JAPANESEPROPAGANDA , 1942
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U.S. ARMY INFANTRY ON PATROL,NEW GUINEA, 1943
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WHEN? NOVEMBER , 1943 WHERE? TARAWA ATOLL, GILBERT ISLANDS, CENTRAL PACIFIC WHAT? JAPANESE-HELD ATOLL W/ AIRFIELD WHY?
◦ TARAWA WAS THE EASTERNMOST USEABLE AIRSTRIP INSIDE JAPANESE-HELD TERRITORY
◦ CAPTURE WAS VITAL TO ADVANCE TOWARDS JAPAN ATOLL WAS DEFENDED BY IJN NAVAL INFANTRY W/OUT FLEET
SUPPORT USMC & USN ARE ORDERED TO SEIZE TARAWA & BEGIN USING
AIRSTRIP IJN FORCE: 5000 (approx.) IJN INFANTRY W/ WELL-
CONSTRUCTED DEFENSIVE POSITIONS U.S. FORCE:
◦ USMC 2nd MARINE DIVISION (& ELEMENTS OF USA 27TH INFANTRY DIVISION)◦ USN – TASK FORCE 30◦ TOTAL: APPROX. 35,000 MEN
TARAWA
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BETIO ISLAND, TARAW ATOLL
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JAPANESE DEFENSIVE POSITIONS, TARAWA, NOVEMBER, 1943
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2nd DIVISION MARINES LAND ON TARAWA
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PRESENT-ARMS,U.S. MARINES,BETIO, TARAWA,CURRENT-DAY
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PROBLEMS:◦ JAPANESE DEFENSIVE POSITIONS ARE STRONGER THAN ANTICIPATED◦ NAVAL GUNFIRE IS LESS EFFECTIVE THAN HOPED FOR◦ AMPHIBIOUS LANDING CRAFT ARE CAUGHT ON CORAL REEF◦ MARINES ARE FORCED TO WADE ASHORE◦ CASUALITES ARE VERY HIGH
FINAL CASUALTIES:◦ IJN: 4900 KIA, APPROX. 200 SURVIVORS◦ USMC: 3000, APPROX., 900-1000 KIA
SO WHAT?◦ USN & USMC HAVE TO RE-EVALUATE THEIR AMPHIBIOUS ASSAULT
TACTICS EX.:
HOW CAN NAVAL ARTILLERY BE MADE MORE EFFICIENT DURING THE NEXT ASSAULT?
WHAT ARE THE BEST TACTICS / METHODS TO USE AGAINST JAPANESE POSITIONS?
◦ USN & USMC BEGIN NEW TRAINING METHODS FOR MARINES & NAVAL CREWS
TARAWA (cont’d.)
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THE U.S. ADVANCE FROM HAWAII TO THE PHILIPPINES
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WHEN? JUNE 19-20, 1944 WHERE? THE PHILIPPINE SEA (east of the Philippine Islands) WHO?
◦ IJN – ADM. JISABURO OZAWA◦ USN – ADM. RAYMOND SPRUANCE
FORCES:◦ IJN:
5 AIRCRAFT CARRIERS 5 BATTLESHIPS 750 PLANES
◦ USN: 7 AIRCRAFT CARRIERS 7 BATTLESHIPS 956 PLANES
WHY?◦ U.S. FORCES ARE “ISLAND-HOPPING” WESTWARD TOWARD PHILIPPINES &
JAPAN◦ IJN BELIEVES IT HAS TO LAUNCH A MAJOR OFFENSIVE TO SLOW U.S.
PROGRESS◦ U.S. 5TH FLEET, MOVING TOWARDS JAPAN, SEEMS LIKE A GOOD TARGET
THE BATTLE OF THE PHILIPPINE SEA
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JUNE 17: IJN TARGETS U.S. 5TH FLEET FOR ATTACK JUNE 18th:
◦ U.S. 5TH FLEET DISCOVERS IJN TO WEST OF U.S. POSITION
◦ SPRUANCE IS CAUTIOUS NOT TO PURSUE IJN W/OUT PROPER INTELLIEGENCE
JUNE 19TH: BATTLE BEGINS BATTLE TRAITS:
◦ MOSTLY AERIAL RAIDS ON ENEMY FLEETS◦ U.S. HAS ADVANTAGES:
MORE CARRIERS (7) MORE EXPERIENCED PILOTS BETTER RADAR CAPABILITY FOR PLANES BETTER PLANES
THE BATTLE OF THE PHILIPPINE SEA (cont’d.)
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U.S. NAVY, GRUMMAN F-6-F “HELLCAT” FIGHTER
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GRUMMAN F6F SINGLE-SEAT FIGHTER
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MITSUBISHI “ZERO” FIGHTER
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U.S.N. F6Fs ON COMBAT AIR PATROL, 1944
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JAPANESE TORPEDO PLANE HIT BY ANTI-AIRCRAFT FIRE
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JUNE 19th: ◦ IJN LAUNCHES 4 AERIAL ASSAULTS ON U.S. 5TH FLEET◦ IJN PLANES ARE REPEATEDLY INTERCEPTED BY U.S
PLANES◦ IJN AIR LOSSES ARE HEAVY◦ AIR BATTLE IS KNOWN AS “THE MARIANAS TURKEY
SHOOT”◦ U.S. FLEET LOSSES ARE LIGHT
JAPANESE AIR LOSSES – WHY SO HEAVY?◦ U.S. PILOTS ARE NOW MORE EXPERIENCED◦ U.S. PLANES ARE NOW AS GOOD (and often better)
THAN THE JAPANESE ZERO FIGHTER◦ MOST / BEST JAPANESE PILOTS WERE KILLED EARLIER IN
WAR◦ SO…JAPANESE PILOTS ARE LESS EXPERIENCED
THE BATTLE OF THE PHILIPPINE SEA (cont’d.)
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JUNE 20TH: U.S. COUNTERATTACKS U.S. FLEET DOESN’T DISCOVER IJN UNTIL LATE
AFTERNOON / EALRY EVENING PROBLEM?
◦ IF U.S. LAUNCHES LATE-DAY ATTACK, PLANES MAY NOT BE ABLE TO RETURN UNTIL AFTER DARK
◦ RESULT…U.S. PLANES MAY BE LOST DUE TO DARKNESS
U.S. ATTACKS @ 6:00pm (approx. time) 550 U.S. PLANES ATTACK IJN IJN SHIP LOSSES ARE HEAVY U.S. PLANES SUFFER LOSSES ON RETURN TRIP
DUE TO DARKNESS & FUEL DEPLETION
BATTLE OF THE PHILIPPINE SEA (cont’d.)
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HEAVY IJN LOSSES:◦ 3 AIRCRAFT CARRIERS SUNK◦ 2 OIL TANKERS SUNK◦ 6 SHIPS HEAVILY DAMAGED◦ 600 PLANES (approx. #) DESTROYED (INJ & LAND-BASED PLANES)◦ PILOT LOSSES ARE IRREPLACEABLE
U.S. LOSSES:◦ 123 PLANES DESTROYED◦ SOME DAMAGE TO U.S. SHIPS
EFFECT?◦ U.S. “ISLAND-HOPPING” CONTINUES ◦ U.S. IS NOW PREPARED TO INVADE PHILIPPINES◦ IJN AIRCREWS ARE DECIMATED◦ IJN NOW MUST RELY ON BATTLESHIPS TO STOP U.S. NAVAL
ADVANCE
FINAL RESULTS