The apartment houses on the border presented a more difficult problem.
Gen. Michael V. Hayden, the C.I.A. director, said last month that the security situation along the Afghanistan-Pakistan border "presents clear and present danger to Afghanistan, to Pakistan and to the West in general, and to the United States in particular".
Gen. Michael V. Hayden, the director of the Central Intelligence Agency, said March 30 that the security situation along the Afghanistan-Pakistan border "presents clear and present danger to Afghanistan, to Pakistan and to the West in general, and to the United States in particular".
The repositioning of troops on the peninsula reflects an assessment that keeping American forces within range of 10,000 artillery pieces and rockets that North Korea keeps along the border presents an inviting target for a first strike, American officials said.
SEOUL, South Korea — Dozens of North Korean land mines loosened by heavy rains have washed ashore on South Korean riverbanks and beaches near the border, presenting a lethal new threat to residents already wary of surprises and nefarious motives from the North.
But Taliban fighters — anyone, really — can cross and smuggle weapons and drugs, underscoring the challenge to the American war effort in Afghanistan, for which the border presents a much firmer barrier, as Pakistan does not allow NATO or American military forces to cross.
For many migrants traversing Eastern Europe to get to Western Europe, the Hungarian-Serbian border presents the final frontier.
For private prisons, according to the group's report, "The threat of a 100percentt criminal referral rate at the border presents an enormous opportunity to expand".
Though being bolstered by Chinese investment and growing Tajik-Chinese trade, the steady deterioration of relations between Tashkent and Dushanbe along Tajikistan's longest and most crucial border presents an immense challenge to the government of longstanding Tajik ruler Emomali Rahmon.
Carrying out research and providing care along the border presents a range of unique practical and ethical challenges.
