at the same time , another ottoman army , ismail bey gathered Come_together in sofia , was about to cross Motion_directional in unk to invade Attack little wallachia , and connect Connect the two armies of the commander at bucharest .

the plan Arranging was successful and on 28 may 1812 the treaty of bucharest was signed Sign_agreement .

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 .