The Dardanelles failure has put an end to the British Empire's apogee. From then on Britain's influence in her dominions had gradually declined. Despondent Africa and India have revolted. A period of awakening had begun in the dominions with the sense of national identity. In 20-30 years time, the British Empire has came to an end. The British has sailed for the world sovereignty but the Dardanelles campaign has misled their route.

After the Dardanelles Campaign, the course of history had been changed not only for Britain but also for Russia. Russia has entered a period of progression and this progression reached its highest point in the Second World War.

On the other hand, the Ottoman Government has closed the straits until the end of First World War and banned any passage through. Doubtless, this closure had very negative effects on international trading and especially on the countries neighbouring the Black Sea.

Military Assessment
.

• According to the Turkish sources, the Allies' total casualties are 187.000 soldiers. The Turkish causality is 57.084 soldiers in the land attacks and 179.000 soldiers in The Naval Attack and totally 211.000 soldiers.
  .
• The Allied Navy had failed to open the straits and to capture Istanbul; thus, the fear of losing Istanbul disappeared.
  .
• The worthiest tribute of this war to the Turkish nation is the birth of Mustafa Kemal's military genius.
  d- Both 18 March Naval and Gallipoli landing victories restored the Turkish Army's prestige.
  .
• When the allies has decided to make an expedition to the Dardanelles, one of their objectives was to leave the Ottoman Empire off the war for an easier defeat of Germany. However, the Turkish victory in Gallipoli caused the Great War to continue two more years, until Germany's withdrawal.
  .
• The closure of the straits cut Russia's connection off with her allies and deprived her from their aids. Because, more than half million allied soldiers were engaged in Gallipoli, Germany led her eastern operations easily.
  .
• Turkish soldiers showed great courage in defending the Dardanelles and they became an example for the Turkish Independence War.
  .
• In these wars, many educated, intellectual Turkish people had died. Their loss had negatively effected Turkey in coming years.