The Wayback Machine - https://web.archive.org/web/20090426044854/http://www.lakdiva.org:80/army/digital_globe.html

Digital Globe: Lanka Satellite Images
Eelam War IV Final Conflict Zone

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This is an sequence of overlay of the region under LTTE control since 2009 Jan 29th from defence.lk on the mostly cloudless Digital Globe images of region taken in 2008.
Western half on left imaged on 2008-05-08 : Eastern half on right imaged on 2008-10-31.
For Full resolution images larger than browser screen width zoom.

Google Earth has posted much higher resolution images taken in May 2005 of the western side of Puthukkudyiruppu, the last LTTE Town.

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You can zoom into region now still under LTTE control shown above using Google Earth. Resolution probably about 1 foot is as high as for Colombo.
For example see - Bridges 1.0 km, 1.0 km region
The Eastern part of Puthukkudyiruppu town still under LTTE on 2009 March 25th seems to have been less urban in 2005 than the western part which has been liberated.

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It is claimed that recent Ariel images show 30,000 shelters in the safe zone. About 75 are shown above, as bright white (metal roof), and Brown (thatched with kajan) rectangles. At this density 30,000 will cover 4 Square Km. which is clearly not visible on the high resolution images of Google Earth. The region imaged on 2009-02-06 by Digital Globe doesn't look significantly different to Google Earth. A croped region is shown below.
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I wonder if the grids of Coconut Palms are counted as shelters :-) A 100 meter wide square region shown below.
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Below an overlay to identify the 14 Sq.km region still under LTTE as of 2009 April 22nd. Each square in the grid is approx 1 square km.

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All (14 sq.km) of the region still under control of LTTE on 2009 April 22nd is the isthmus which is less than a km wide, and has been designated as a NO FIRE ZONE. The 25th March defence.lk map indicated that LTTE troops were now within the region.

I suspect the LTTE retreated or were pushed into this large urban region, which the LTTE, may have protected more than Kilinochchi and Mullaittivu. GOSL has now pushed the LTTE into the less developed isthmus of 17 Sq.Km and hopefully the remaining estimated 100,000 civilians, will be able to escape soon from being human shields for the LTTE. Most of them did when the Northern bund was breached on April 20th.

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1976 May 5th TNT becomes the Liberation Tigers of Tamil Eelam (LTTE).
On 1976 May 14th the new parliamentary party, the Tamil United Liberation Front (TULF), which sought to make political capital out of the changing aspirations of the Tamil Youth, committed itself to the goal of Eelam through it's founding Vaddukoddai Resolution. 33 Bullet ridden year later in 2009 the LTTE locked into 17 Sq. km of land. Image