Question: During World War II, when did Germany invade the continent where Legend of the Lost was filmed?

<P0-S0> during world war i, the german empire was one of the central powers that lost the war. <P0-S1> it began participation in the conflict after the declaration of war against serbia by its ally, austria - hungary. <P0-S2> german forces fought the allies on both the eastern and western fronts, although german territory itself remained relatively safe from widespread invasion for most of the war, except for a brief period in 1914 when east prussia was invaded. <P0-S3> a tight blockade imposed by the royal navy caused severe food shortages in the cities, especially in the winter of 1916 -- 17, known as the turnip winter. <P0-S4> at the end of the war, germany's defeat and widespread popular discontent triggered the german revolution of 1918 -- 19 which overthrew the monarchy and established the weimar republic. <SEP> <P1-S0> The plot is vaguely similar to another of Wayne's movies crossing the Mojave Desert. <P1-S1> The Roman remains of Leptis Magna in Libya were used extensively as a location for the ancient city. <P1-S2> In the script Wayne's character refers to 'Timgad' in sardonic reference to the apparent delusions of Paul's father, despite the fact this places a considerable strain on the geography of the plot. <P1-S3> Wayne liked the location work in Rome and Libya. <P1-S4> The lost city of Timgad referred to in the film was actually the Leptis Magna ruins, a Roman city dating back to the 7th century B.C. <P1-S5> near Tripoli, in northwest Libya, while ``Timbuktu ''was actually in Zliten, Libya. <P1-S6> Headquarters for the film were located in Ghadames, where, according to the publicity material, citizens of the villages were employed on set, as well as some native Tuaregs, an ancient desert tribe. <SEP> <P2-S0> Fighting in North Africa started with the Italian declaration of war on 10 June 1940. <P2-S1> During Operation Compass, the Italian 10th Army was destroyed and the German Afrika Korps -- commanded by Erwin Rommel, who later became known as ``The Desert Fox ''-- was dispatched to North Africa in February 1941 during Operation Sonnenblume to reinforce Italian forces in order to prevent a complete Axis defeat. <P2-S2> On 14 June, the British Army's 11th Hussars (assisted by elements of the 1st Royal Tank Regiment, 1st RTR) crossed the border from Egypt into Libya and captured the Italian Fort Capuzzo. <P2-S3> This was followed by an Italian counter-offensive into Egypt and the capture of Sidi Barrani in September 1940 and again in December 1940 following a British Commonwealth counteroffensive, Operation Compass. <SEP> <P3-S0> The sovereign state is made of three historical regions: Tripolitania, Fezzan and Cyrenaica. <P3-S1> With an area of almost , Libya is the fourth largest country in Africa, and is the 16th largest country in the world. <P3-S2> Libya has the 10th-largest proven oil reserves of any country in the world. <P3-S3> Libya (; ; ), officially the State of Libya, is a country in the Maghreb region in North Africa, bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad to the south, Niger to the southwest, Algeria to the west, and Tunisia to the northwest. <P3-S4> The largest city and capital, Tripoli, is located in western Libya and contains over one million of Libya's six million people. <P3-S5> The second-largest city is Benghazi, which is located in eastern Libya. <SEP> <P4-S0> the territorial changes of germany include all changes in the borders and territory of germany from its formation in 1871 to the present. <P4-S1> modern germany was formed in 1871 when otto von bismarck unified most of the german states, with the notable exception of austria, into the german empire. <P4-S2> after the first world war, germany lost about 10% of its territory to its neighbours and the weimar republic was formed. <P4-S3> this republic included territories to the east of today's german borders.