▁ 1 9 0 3 . ▁ ▁The ▁area ▁of ▁Upper ▁Y af a ▁had ▁not ▁been ▁visited ▁by ▁Europe ans ▁before ▁Colonel ▁M . C . ▁Lake ▁of ▁the ▁British ▁Indian ▁Army ▁expl ored ▁it ▁in ▁order ▁to ▁gather ▁intelligence ▁and ▁to ▁find ▁suitable ▁sites ▁for ▁landing ▁grounds . ▁In ▁ 1 9 2 5 ▁Lake ▁built ▁a ▁small ▁army ▁of ▁trib al ▁war riors ▁that ▁would ▁be ▁able ▁to ▁assist ▁the ▁British ▁A den ▁Prote ctor ate ▁in ▁event ual ▁territorial ▁sc uff les ▁with ▁the ▁Im am ▁of ▁Y emen . ▁ ▁Between ▁ 1 9 5 5 ▁and ▁ 1 9 5 7 ▁there ▁were ▁u pr is ings ▁against ▁the ▁British ▁authorities ▁in ▁Upper ▁Y af a ▁that ▁were ▁successfully ▁suppress ed . ▁Un like ▁Lower ▁Y af a , ▁in ▁the ▁ 1 9 6 0 s ▁Upper ▁Y af a ▁did ▁not ▁join ▁the ▁British - sp ons ored ▁Federation ▁of ▁South ▁Arab ia , ▁forming ▁an ▁enc lave ▁that ▁became ▁a ▁part ▁of ▁the ▁Prote ctor ate ▁of ▁South ▁Arab ia . ▁ ▁The ▁Upper ▁Y af a ▁Sultan ate ▁was ▁abol ished ▁in ▁ 1 9 6 7 ▁upon ▁the ▁found ing ▁of ▁the ▁People ' s ▁Republic ▁of ▁South ▁Y emen . ▁ ▁South ▁Y emen ▁un ited ▁with ▁North ▁Y emen ▁in ▁ 1 9 9 0 ▁to ▁form ▁the ▁Republic ▁of ▁Y emen . ▁ ▁Har h ara ’ s ▁are ▁known ▁to ▁be ▁one ▁of ▁the ▁fier c est ▁tribes