MAPS OF HISTORY · ON THIS DAY · SEPTEMBER 17 · Operation Market Garden begins (1944)ON THIS DAY · 17 SEPTEMBER 1944
Operation Market Garden begins
Market Garden: 35,000 airborne troops drop into Holland to seize a corridor of bridges. Arnhem proves “a bridge too far.”
17 SEPTEMBER 1944 · THE WAR ROOM — WW2, 1936–1945 These maps are reconstructed from published sources · US War Department — Atlas of the World Battle Fronts (1945) · Cliopatria v0.2.1 — dated political boundaries · Regional history institute — Italian annexations of1941, Fiume province and Krk · Regional history institute — Adriatic occupation chronology,1943–1945 · Regional history institute — Zara evacuation and Yugoslav entry,October1944 · IGM Fiume, 1:25,000, sheet53B II SE — boundary established in1924 · Miroslav Krleža Lexicographic Institute — Lastovo wartime chronology · Natural Earth — physical reference geography · Yugoslavia (1929–1939) location map — international frontier and Adriatic coast · Treaty of Rome (1924), division of Fiume and west-bank boundary · Murli / rowanwindwhistler — Slovakia border changes, 1938–1945 · United States Holocaust Memorial Museum — The Holocaust in Slovakia · Slovak Nation’s Memory Institute — The First Vienna Award
Source details United States War Department, General Staff,1945. US Army official work; public domain Cliopatria contributors / Seshat Global History Databank. CC BY4.0 · Dated polity and constituent territory selections; campaign-dependent occupation overlays reconstructed separately. Regional history institute — Italian annexations of1941, Fiume province and Krk. Historical geographic facts consulted; source prose and artwork not republished Regional history institute — Adriatic occupation chronology,1943–1945. Historical geographic facts consulted; source prose and artwork not republished Regional history institute — Zara evacuation and Yugoslav entry,October1944. Historical geographic facts consulted; source prose and artwork not republished Istituto Geografico Militare, Fiume (printed1946; 1927 survey with1931–1940 updates), reproduced by Istituto regionale per la storia della Resistenza e dell’Età contemporanea nel Friuli Venezia Giulia. Independent reconstruction from graticule coordinates and boundary observations; archive page reserves artwork rights.. Geographical-fact reconstruction; original archive artwork not distributed Miroslav Krleža Lexicographic Institute — Lastovo wartime chronology. Historical geographic facts consulted; source prose and artwork not republished Natural Earth. Public domain NordNordWest/Wikipedia. Converted from the published SVG to WGS84; eastern Italian regional territory extracted. Source cites Velhagen & Klasings Großer Volksatlas (1938).. CC BY-SA 3.0 Germany 1924 agreement interpreted alongside the regional history institute and City of Rijeka’s explanation of the Donja/Gornja Drenova division.. Historical geographic facts; citation only Murli; SVG adaptation by rowanwindwhistler (2021). CC BY-SA 2.5; derived geographic paths under the same license · Georeferenced actual published vector regions using eight printed city positions; no map artwork or labels in the atlas. United States Holocaust Memorial Museum — The Holocaust in Slovakia. Historical chronology consulted; no source prose or artwork republished Slovak Nation’s Memory Institute — The First Vienna Award. Historical territorial chronology consulted; no source artwork or prose republished The moving front follows the source-map position for 1944-06-15. The source date is kept separate from the chapter anchor; manual registration has the precision of a regional map.
The legacy Italian front ID is retained, while its geometry follows the actual dated front. In June 1944 the front is near Rome, rather than prematurely at the Gothic Line.
Slovak territory is reconstructed from the published 1938–1945 border-change map, which separates the client state from Hungarian and German annexations. This regional source does not resolve small northern frontier changes or survey-level detail. After August 1944, German military occupation supersedes the client-state fill.
Published prewar regional land geometry supplies a geographic reference for military control documented separately. Lastovo is Partisan-held after September 1943; Zara changes after October 1944. These regional fills do not claim continuous control of every rural locality.
The dates of published political outlines retain the resolution available in their sources. Military fronts and operational perimeters have their own source and method records.
reconstruction: 1939–1944 · reconstruction: 1941–1944 · reconstruction: 1942–1945 · reconstruction: 1943–1944 · reconstruction: 1943–1945 · reconstruction: 1944-06-15 · reconstruction: 1944.45 · reconstruction: 1944–1944 · trace: 1944-06-15 · vector: 1912–1955 · vector: 1936–1944 · vector: 1936–1945 · vector: 1938–1972 · vector: 1939–1944 · vector: 1939–2023 · vector: 1941–1944 · vector: 1942–1945 · vector: 1943–1944 · vector: 1943–1946 · vector: 1944–1944 · vector: 1944–1945
Layer records and reconstruction methods
The moment in context The Western Allies sent about 156,000 troops onto five Normandy beaches on 6 June 1944. Getting them there was an undertaking years in preparation. Ships had to cross the Atlantic safely; aircraft had to hinder German movement across France; landing craft and supplies had to be assembled in immense quantities. Once the troops were ashore, naval gunfire and the resources following them across the Channel helped them establish a foothold.
From D-Day and Operation Bagration , chapter 12 of The War Room — WW2, 1936–1945 (JUN 1944).
Teach this in 5 minutes Why it happened — Preparing the crossing. The crossing depended on three years of preparation. Victory in the Battle of the Atlantic in 1943 protected the Allied buildup; air supremacy over…The turn — Omaha Beach, 6 June. The plan held on four beaches, but at Omaha the first waves were pinned beneath the bluffs. Bombs had fallen beyond their targets and many…What it changed — The liberation of France. Operation Cobra broke the Allies out of Normandy; Operation Dragoon brought another landing on the Riviera. Paris was liberated on 25 August. Move…Then ask the room: Bagration destroyed four times more German divisions than Normandy, yet D-Day dominates Western memory. Why — and does it matter? The argued answer is on the chapter page →
The atlas that shows it
THE FREE PRINTABLE STUDY GUIDE
Get the printable study guide for WW2 free. I’ll send you a few short letters, then one when a new atlas opens. That’s all. — Paul
NO TRACKING · YOUR ADDRESS IS USED FOR THE DISPATCH AND NOTHING ELSE ·
UNSUBSCRIBE ANYTIME
