▁in ▁San ▁Fernando ▁city , ▁about ▁ 2 5 ▁km ▁( 1 5 ▁mi ) ▁from ▁Buenos ▁Aires ▁dow nt own . ▁Is ▁operated ▁by ▁Aer op u ert os ▁Argentina ▁ 2 0 0 0 ▁S . A . ▁( IC A O : ▁S AD F ) ▁ ▁Mor ón ▁Airport ▁and ▁Air ▁Base , ▁located ▁about ▁ 3 5 ▁kilometres ▁( 2 2 ▁mi ) ▁from ▁Buenos ▁Aires ▁city . ▁It ▁was ▁the ▁main ▁air port ▁in ▁Argentina ▁prior ▁to ▁the ▁opening ▁of ▁Min istro ▁P ist ar ini ▁International ▁Airport ▁in ▁ 1 9 4 4 . ▁( IC A O : ▁S AD M ) ▁ ▁Costa ▁Rica ▁ ▁Buenos ▁Aires ▁Airport ▁( C osta ▁Rica ), ▁an ▁air port ▁serving ▁Buenos ▁Aires , ▁Costa ▁Rica ▁( I ATA : ▁B AI , ▁I CA O : ▁MR BA ) <0x0A> </s> ▁Begin ning ▁from ▁the ▁late ▁eigh teenth ▁century , ▁the ▁Ott oman ▁Empire ▁( O tt oman ▁Old ▁Reg ime ) ▁faced ▁challeng es ▁def ending ▁itself ▁against ▁foreign ▁invasion ▁and ▁occupation . ▁In ▁response ▁to ▁foreign ▁thre ats , ▁the ▁emp ire ▁initi ated ▁a ▁period ▁of ▁trem end ous ▁internal ▁reform ▁which ▁came ▁to ▁be ▁known ▁as ▁the ▁T anz imat , ▁which ▁succeeded ▁in ▁significantly ▁strength ening ▁the ▁Ott oman ▁central ▁state , ▁despite ▁the ▁emp ire ' s ▁prec ari ous ▁international ▁position . ▁Over ▁the ▁course ▁of ▁the ▁nin ete enth ▁century , ▁the ▁Ott oman ▁state ▁became ▁increasing ly ▁powerful