The Macedonian Struggle was a series of social, political, cultural and military conflicts that were mainly fought between Greek and Bulgarian subjects who lived in Ottoman Macedonia between 1893 and 1912. The conflict was part of a wider guerilla war in which revolutionary organizations of Greeks, Bulgarians and Serbs all fought over Macedonia. Gradually the Greek and Bulgarian bands gained the upper hand. Though the conflict largely ceased by the Young Turk Revolution, it continued as a low intensity insurgency until the Balkan Wars.

Lambros Koromilas was a Greek economist and diplomat, and one of the leading figures in the Macedonian Struggle during his tenure as Greek Consul-General to Thessaloniki in 1904–1907. He also served as Finance Minister in 1910–1912 and Foreign Minister before and during the Balkan Wars of 1912–1913.