...an overland journey through Iraq, Turkey, Iran and Pakistan.

途径伊拉克、土耳其、伊朗和巴基斯坦的陆路旅程

The overland route is across some really tough mountains.

这条陆上路线要跨越一些非常险峻的大山。

Militia leaders had halted overland food convoys in the region.

民兵首领已拦阻了该地区经由陆上运送食品的车队。