Why was the ottoman empire a desirable territory for european nations during the 19th century?

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At its maximum the empire included utmost of southeastern Europe to the doors of Vienna, including present-day Hungary, the Balkan territory, Greece, and portions of Ukraine; parts of the Middle East presently controlled by Iraq, Syria, Israel, and Egypt; North Africa as very westward as Algeria; and great portions of the Arabian. The cease-fire of 31 October 1918 halted the combat between the Ottoman Empire and the Allies but did not yield establishment or harmony to the country. ... The Young Turk regime headed by Enver Pasha had fallen in the days preceding up to the cease-fire.

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