the war Military_operation set the stage for the balkan crisis Catastrophe of 1914 and thus served as a `` prelude to the first world war Military_operation '' .

the first balkan war Military_operation began Process_start when the league member states attacked Attack the ottoman empire on 8 october 1912 and ended Process_end eight months later with the signing of the treaty Sign_agreement of london on 30 may 1913 .

the second balkan war Military_operation began Process_start on 16 june 1913 .

in the resulting Causation treaty Sign_agreement of bucharest , bulgaria lost Earnings_and_losses most of the territories it had gained Getting in the first balkan war Military_operation in addition to being forced Motion to cede Surrendering the unk unk of unk province to romania .

when romanian troops approached the capital sofia , bulgaria asked Request for an armistice , resulting in the treaty of bucharest , in which bulgaria had to cede portions of its first balkan war gains to serbia , greece and romania .