Nearly half a century after China's invasion, it remains largely undefined and bitterly contested.
With its massive oil reserves, Kirkuk is the most bitterly contested of Iraq's disputed territories.
Egypt lost out to Algeria in a bitterly contested, politically charged World Cup playoff in Sudan last November.
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Kirkuk is the most bitterly contested of Iraq's disputed territories, claimed by both the Kurdish region and Baghdad.
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But there is also a more technical but bitterly contested question to do with the role of central banks.
But it also signifies a shifting tide in one of the UK's largest churches on one of the most bitterly contested issues of recent times.
Kirkuk - home to a mixture of Arabs, Kurds and Turkmen - is one of the most bitterly contested of Iraq's disputed territories.
With its massive oil reserves, Kirkuk - home to a mixture of Arabs, Kurds and Turkmen - is one of the most bitterly contested of Iraq's disputed territories.
His influence, however, is bitterly contested by his long-standing rival, Ahmed Chalabi, another secular Shia with an impressive financial base boosted by contracts from Iran and by the Pentagon.
The area, once a barren and bitterly contested site, has since given way to the beginnings of construction for a long awaited "Freedom Tower, " or the 1 World Trade Center.
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And while the Kurdish north is the safest part of Iraq, tension is growing over the bitterly contested and oil-rich city of Kirkuk, to where many of the Kurds displaced in Saddam's brutal Arabisation campaign are returning.
On Wednesday, 616 people reached the Yida refugee camp in South Sudan - the highest number yet recorded - escaping hunger and conflict across the border in South Kordofan, a bitterly contested region of Sudan better known as the Nuba Mountains.
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