Iri said the explosion hit the last Turkish border gate before Syrian territory.
CNN: Blast kills 13 at Turkish customs gate on Syrian border
But where were the Ugandan troops supposedly patrolling the border last week?
The Shabab says it downed a Kenyan military helicopter flying along the border last month, though Kenya denies it.
ECONOMIST: None of Somalia��s neighbours is keen to ride to its rescue
The last town before the Spanish border, Cerbere, feels more Catalonian and less French, with a smaller quai-side than Banyuls and a boat-clogged harbour framed by the Pyrenees.
The two countries, which formally split in 2011, agreed to resume transfers of oil across the border last month.
Mortenson claims that he has educated over 60, 000 of young children and mostly girls and built over 170 schools in Karakoram -the north west of Pakistan and the Wakhan valley of Afghanistan near the Russia and China border during the last 17 years.
FORBES: How Greg Mortenson's Defense Takes Cues From Sarah Palin
Kenya sent troops across the border last year to fight al-Shabab but its forces have since been merged with the AU force in Somalia.
In the coming days, the last American soldiers will cross the border out of Iraq, with honor and with their heads held high.
WHITEHOUSE: President Obama��s Press Conference with Prime Minister Maliki | The White House
The club are furious after McCarthy was spotted partying in Vigo, just across the Spanish border, last Friday celebrating his girlfriend's birthday.
BBC: SPORT | Football | African | McCarthy dropped to reserves
Brodie Clark resigned as head of the UK border force last week amid a row with Home Secretary Theresa May over the relaxation of passport controls during a pilot scheme last summer.
Once Timbuktu is secured, the French-led troops are expected to focus on the last rebel stronghold, Kidal, near the border with Algeria.
But perhaps the most dramatic change over the last 20 years has been the gradual removal of border controls between EU states.
The Syrian soldiers who were killed in Iraq last week reportedly entered through the Yaarubiyeh border in the northern Nineveh province over the weekend of 2-3 March after Syrian rebels attacked them.
BBC: Map showing Akashat in Iraq and al-Waleed border crossing
The Pakistani government launched a military campaign in the previously autonomous border area of South Waziristan during the last two years.
The disputed region is on the border between the two countries created last year when South Sudan split from Sudan.
CNN: South Sudan says it is withdrawing from disputed oil region
The weary, hungry group arrived here, close to the border with Ethiopia, late last night after a relatively quick, four-day, 250km (155-mile) journey, by foot, car and donkey cart, from the central Somali town of Diinsoor.
President Obama discussed border security in his State of the Union address last week, ensuring his commitment to border safety, so border security will remain an issue, which companies can benefit from.
FORBES: An increase in border security could result in more M&A
The home secretary is about to unveil the official report into the relaxing of border controls last summer.
U.S. Secretary of State Hillary Clinton warned during a visit to Egypt last month that the desert border between Israel and Egypt could become an "operational base" for jihadists if security is not maintained.
Although they accept that military action should be taken against al-Qaida and foreign fighters, they say that that action has to be by the Pakistani army within the territory of Pakistan, and that the military approach toward the Taliban that has been used, off and on for the last two years in the tribal areas of Pakistan that border Afghanistan, has proved an unmitigated disaster.
The two countries came close to all-out war over border disputes last year, and have since agreed to set up a buffer zone along the border.
Zaatari is a sprawling camp made up of canvas tents and prefab shelters in the Jordanian desert, close to the Syrian border, which has tripled in size in the last three months, in order to accommodate the thousands of refugees arriving every day.
Thomas Dylik, 48, captain of the yacht Baila where UK Border Agency officers found the haul in June last year, has already admitted the same charge.
But this slice of paradise exists cheek by jowl with the war-torn, lawless border region of Somalia, and last month the two worlds collided, with deadly consequences.
Pakistani forces, with the help of intelligence from the center, last week raided an al-Qaeda hideout near the Afghan border.
Last year Ukrainians crossed the border with Poland 6m times, Belarussians 4m times.
The whole changing-money-every-time-you-cross-the-border thing was so last century.
As the situation in Southern Sudan and the Eritrean-Ethiopian border show, these agreements only last as long as neither side believes it can defeat the other.
The House, last December, approved a bill that was all about enforcing the border.
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