The mountains on both sides of the rugged border of Pakistan and Afghanistan are abloom again with poppies.

Likeliest would be an airmobile assault by helicopter coming out of the southeast, mountain-hopping across the rugged, forested border with Greece.

Fighting has intensified, particularly in the east along the rugged, 1,500-mile border with Pakistan and in the south near Kandahar.

Their primary mission is to patrol the rugged, 900-mile-long Tajik-Afghan border, to try to keep out drugs, weapons and holy warriors.

Those interviewed said they were preparing to cross the rugged border to join the rebels and fight Serbian troops.

Attack helicopters thunder along the rugged, mountainous border with Albania in search of gunrunners and rebel bands.

Venezuela has responded by saying it cannot adequately patrol the rugged and sparsely populated 1,400-mile border separating the countries.

Just as a porous, rugged border has allowed the infiltration of insurgents, it has also provided pathways for the spread of polio.

It is no longer possible to cross here legally, though with the rugged border being long and remote, locals keep crossing it illegally all the time.

Weapons, carried by pack horses and mules, can be seen arriving nightly across the rugged border with Albania.