Under previous peace negotiations, Egypt has international obligations to regulate the border.

VOA: standard.2010.06.01

s very important but it's also pretty nearly impossible because the difficulty of the terrain, the people who are divided by this border do not recognize the border and the Afghanastan has never recognized it as an international border.

但其实也是几乎不可能的，It’,因为那里的地形很复杂，被这个边境线所分开的人们并不认可这个边境线,阿富汗人不认可这个边境线。

普林斯顿公开课 - 国际座谈会课程节选

"The reason we are in Afghanistan militarily is that we know the consequences of allowing the bad lands of Afghanistan, of the Afghan-Pakistan border to become an incubator for international terrorism,"

VOA: standard.2009.10.21

That is the maritime region where North Korea has disputed a sea border for decades and where an international team of investigators concluded a North Korean submarine sank a South Korean patrol ship in March,killing 46 sailors.

VOA: standard.2010.05.27

Analysts say the latest attack is likely to push Pakistan to launch a long-awaited military offensive against terrorist bases in the Waziristan tribal region, which is also being used to launch attacks on international forces across the border in Afghanistan.

VOA: standard.2009.10.11