▁in ▁April ▁ 1 8 2 6 . ▁I bra him ▁had ▁succeeded ▁in ▁suppress ing ▁most ▁of ▁the ▁revol t ▁in ▁the ▁Pel op onn ese ▁and ▁Ath ens ▁had ▁been ▁ret aken . ▁Russia , ▁Britain ▁and ▁France ▁decided ▁to ▁interven e ▁in ▁the ▁conflict ▁and ▁each ▁nation ▁sent ▁a ▁n avy ▁to ▁Greece . ▁Following ▁news ▁that ▁combined ▁Ott oman – E gypt ian ▁fle ets ▁were ▁going ▁to ▁attack ▁the ▁Greek ▁island ▁of ▁H yd ra , ▁the ▁al lied ▁fleet ▁intercept ed ▁the ▁Ott oman – E gypt ian ▁fleet ▁in ▁the ▁battle ▁of ▁Navar ino . ▁Following ▁a ▁week ▁long ▁st ando ff , ▁a ▁battle ▁began ▁which ▁resulted ▁in ▁the ▁destruction ▁of ▁the ▁Ott oman – E gypt ian ▁fleet . ▁With ▁the ▁help ▁of ▁a ▁French ▁expedition ary ▁force ▁proceeded ▁to ▁the ▁captured ▁part ▁of ▁Central ▁Greece ▁by ▁ 1 8 2 8 . ▁ ▁The ▁Greek ▁War ▁of ▁Independ ence ▁saw ▁the ▁beginning ▁of ▁the ▁spread ▁of ▁the ▁Western ▁notion ▁of ▁national ism , ▁stim ulated ▁the ▁rise ▁of ▁national ism ▁under ▁the ▁Ott oman ▁Empire , ▁and ▁eventually ▁caused ▁the ▁break down ▁of ▁the ▁Ott oman ▁mil let ▁concept . ▁Un question ably , ▁the ▁concept ▁of ▁nation hood ▁pre val ent ▁in ▁the ▁Ott oman ▁Empire ▁was ▁different ▁from ▁the ▁current ▁one ▁as ▁it ▁was ▁centered ▁on ▁religion . ▁ ▁The ▁Aus p icious ▁Inc ident , ▁ 1 8 2 6 ▁▁ ▁Mah m ud ▁II ' s ▁most ▁notable ▁achiev