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To set the scene, just click and minimise the following musical link.
Theme Music British & Portuguese position in the autumn of 1809As expats are aware, the war against Napoleon has had mixed fortunes in Europe.
Following the disastrous retreat through Spain, where the british army only narrowly escaped
capitivty by throwing off the french at Corunna.
Their valiant commander, Sir John Moore was killed in the battle but he bought his troops
enough time, to be evacuated by sea. By the time they reached England, it was a bedraggled
emaciated army that stepped ashore, in testament to the suffering endured during their long
retreat.
Napoleon's troops, commanded by Soult, didn't rest too long on their laurels in Corruna before
marching into Portugal from the north, securing Oporto by the 28th March.
But Napoleon's hopes of recapturing Lisbon within a month are dashed by the wretched
condition of the roads and the fury of the guerilla war that flares up behind Soult's army.
With Portuguese troops under Francisco Silveira, threatening Soult's left flank at Amarante.
The french invasion grinds to a halt, long enough for british reinforcements under Wellesley to
engage the french at Oporto and drive Soult's troops back across the spanish frontier.
Despite further success in Spain, neutralising the second french force led by Marshall Victor at
Talavera.
The fortunes of war swing once more in Napoleon's favour, as yet another victory against the
Austrians at Wagram, frees more french troops for the spanish campaign.
With Napoleon about to appoint another french marshall, Andrea Massena ( a man famed more
for his greed & letcherous conquests of women, than for his exploits in battle ) who would lead
the next napoleonic invasion of Portugal.
Clickable Map of Spain and Portugal during the Peninsular WarsMap of the PeninsularThe British army withdraws to PortugalWith the british falling out with their Spanish allies over their conduct at Talavera in July 1809.
Wellesley withdraws to Oroposa, where under threat from a new french force advancing
from Salamanca, under Soult. The British fall back on the fortress border town of Badajoz
before finally retiring into winter quarters in Portugal between October and December 1809.
British general leading his troops out of Spain
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Back to the Peninsular Wars, events in Portugal and beyond
With the Napoleon's forces fully engaged on a brutal suppresion of the Spanish revolt, spanish
troops are desperately trying to contain the french reconquest of Spain by holding out for as long
as possible in towns and cities across Spain, with the centre of resistance being Seville
in Andalusia.
No doubt expats have been watching these desparate struggles against Napoleon's troops, as
seen on Spanish news reports, early this month.
Spanish tv news report on Napoleon's troops quelling the spanish uprisingColmenar de Oreja recrea la Guerra de la Independencia contra los francesesMore film coverage of the War in Spain3?PARTE RECREACION HISTORICA DE LA GUERRA DE LAINDEPENDECIA EN COLMENAR DE OREJA -1809-2009Wellesley orders the construction of the Lines of Torras VedrasWith the military situation deteriorating rapidly in Spain, the british needed to put in place some
means of defence against the next invasion.
Here both the British general Arthur Wellesley and the Portuguese under Major Jose Maria
das Neves Costa, have been surveying the range of hills, north of Lisbon.
Costa submitted his ideas for a line of defence to the Portuguese regency, in the spring of !809.
These ideas were examined and improved upon by Wellesley, who also saw the potential for
setting up a line of forts and redoubts, either side of a range of hills eminating from Torres Vedras.
In October 1809, Wellesley ordered his chief engineer Colonel Sir Richard
Fletcher to survey the area with a view to establishing a couple of defence
lines round the Lisbon peninsular.
On the 20th October a memorandum was issued for the construction of mutually supporting
redoubts and earthworks around the Lisbon peninsular, the work to be carried out with
the utmost secrecy from the outside world.
Preparing the ground
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Lisbon lies at the southern end of a peninsular formed by the Atlantic to the west and the
Tagus to the east. Further north the terrain is mountainous, but the area south of Torres Vedras,
where the defences were built, is hilly, reaching a high point of just over 410m (1,350ft) south of Sobral.
On a detailed map the hills north of Lisbon look to be a complex mess, but in fact the general topography
of the area is quite straightforward. The highest ground is on the western side of the peninsula,
reaching close to the Tagus around Alverca. From that point two lines of higher ground
stretch out towards the Atlantic, one running north west towards Sobral and another running west,
past Bucellas and towards Mafra. This second line is the stronger of the two, with higher
ground most of the way to the Atlantic, and the gap filled by the valley of the River San Lourenco.
The first line (to Sobral) is longer, and its western half is much lower lying.
The valley of the River Zizandre reaches as far as Sobral, but to reach this area the French would
have had to march around the Serra de Monte Junta, which stretches fifteen miles north of the Zizandre
without being crossed by a single good road. The eastern part of the valley was defended by
strong fortifications based around Torres Vedras, while the western part was carefully flooded,
creating an impassable bog.
The Lines of Torres Vedras
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Clickable map of the area where the Lines of Torres Vedras was builtMap of Torres Vedra LinesWhen work first began on the defences of Lisbon, the plan was to build two full lines,
one close to Lisbon to act as a point of final refuge and the second across the peninsula from Alverca
through Mafra, reaching the Atlantic along the River San Lourenco. Further north the line from Alverca
to Sobral, and then on to Torres Vedras was seen as a line of outposts, to be held for as long as possible
and then abandoned, with its defenders falling back to the main line.
When work began on the lines, Wellington expected the French to turn against him at any
moment but instead they invaded Andalusia, and Wellington?s engineers gained an extra year to build
their defences. By the time Wellington finally retreated back into the lines, the first line was
so strong that Wellington decided to make it his main line of defence.
Despite their name, the Lines of Torres Vedras were actually made up of a series of separate
fortifications, carefully placed to provide each other with covering fire.
These forts varied in size from the massive fort at Torres Vedras, designed to hold 5,000 men,
down to small gun emplacements designed to mount three guns and 200 men.
Hundreds of tons of earth were moved in front of the lines. Some of this work was done to remove blind
spots, where the French could have hidden from gunfire from the forts, while in other areas
the hills were cut away to create virtual cliff faces, that the French would have to climb before
they could reach the forts (one of the longest stretches saw a 2000 yard long cliff created near Alhandra).
Sunken roads were filled up and houses demolished to deny the French any cover. In some areas valleys
ran through the lines, and these were filled with an abattis made up of entangled olive trees.
These were very difficult to remove, impossible to actually move through, but did not block grapeshot.
The defensive work continued north of the lines themselves. Wellington?s engineers made preparations to
destroy every road and bridge that the French might use to approach the
fortifications.
The western end of the first line was defended by building dams to block the River Ziznadre.
These created a flooded area several miles long, surrounded by bogs. The dams themselves were
protected by forts that were out of range of any guns in the French field army.
Built in relative secrecyOne of the most impressive things about the construction of the Lines of Torres Vedras
was that their existence was kept almost completely secret from the French, and even to a certain
extent from the British and Portuguese armies. Even some of Fletcher?s engineers are said
not to have realised exactly what they had built. Therefore the French would be in for an
uncomfortable surprise when they finally confront the Lines of Torres Vedras.
Fort de Sao Vincente on the Torres Vedras lines
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Here I attach a map showing the four Lines of Torres Vedras - which clearly show that
if Napoleon's troops had broken through the first line, their was a still a second line to
delay the french. Finally if both the first and second lines were to be breached.
Then the british third and fourth lines are positioned to deny the french the high ground
and uninterrupted cannon fire of Lisbon harbour. Thus giving the navy ample
time to evacuate Wellesley's army, as the french begin to encircle the city.
Points of interest, Pero Negro is Wellesleys headquarters behind the lines and Sobral
marks the spot where Massena's army attempted to breach the lines, defended by
the Great Redoubt.
Map of the Four Lines of Torres Vedras 
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Concluding part of the Sharpe theme music, please click & minimise.
Conclusion of the Sharpe theme music