An 8-foot-high, double-walled, barbed-wire fence draped with laundry menaces the border between Sutia, India, and Dhannokulla, Bangladesh. But if I wanted to cross from Sutia to Dhannokulla last ...

Some areas have double or triple fences and concertina wire. Inside the DMZ, there are 1,292 stakes indicating the Military Demarcation Line (MDL). Of them, ...