Related by context. Frequent words. (Click for all words.) 72 borders 68 border crossing 66 porous border 63 border crossings 60 Border 58 frontier 57 Indo Bangla border 54 borderlands 54 mountainous frontier 53 porous borders 53 borderland 52 boarder 51 Sasabe 51 Indo Pak border 51 rugged frontier 49 LoC 48 Border Crossing 48 Border Patrol 48 crossings 47 crossing 46 Durand Line 46 border crossers 46 checkpoint 46 smugglers 46 demilitarized zone DMZ 45 crossborder 45 Border Patrol agents 45 illegal crossers 45 southern 44 Border Security 44 drug smugglers 44 illegal migrants 44 northern 44 demilitarized zone 44 migrant smugglers 43 checkpoints 43 bordering 43 porous 43 smuggling 43 Control LoC 43 Naco 43 illegal immigration 43 Border Fence 43 Tumen River 42 Munabao 42 borderlines 42 Nathu La 42 Border Patrol agent 42 highway 42 infiltrators 42 heavily fortified border 42 DMZ 42 checkposts 42 heavily militarized border 42 barbed wire fencing 42 smuggling routes 42 Indo Bangladesh 41 Cukurca 41 Agua Prieta 41 coastline 41 Rafah border 41 Indo Myanmar 41 San Ysidro border 41 Border Patrol checkpoint 41 overland 41 lawless frontier 41 San Ysidro Port 41 Wagah border 41 Nogales Sonora 41 Tucson Sector 40 neighboring 40 Demilitarized Zone 40 airspace 40 Egypt Sinai peninsula 40 Wagah 40 waterway 40 buffer zone 40 Border Protection 40 Rafah crossing 40 immigration 40 rugged mountains 40 BORDER 40 mountainous 40 tribal regions 40 territorial waters 39 migrants 39 incursions 39 infiltrations 39 barbed wire fence 39 Karakoram Highway 39 smuggler 39 checkpoints manned 39 Rafah terminal 39 straits 39 south 39 Apprehensions 39 Yalu River 39 Border Patrol Tucson 39 binational 39 boundary 39 territory