Original sentence: The Central Powers' defeat at the Dobro Pole played a role in the Bulgarian withdrawal from the war and opened the way for the subsequent conquest of Vardar Macedonia.The Macedonian Front was thus established in an effort to support the remnants of the Serbian army to conquer Vardar Macedonia
Edited sentence: The Central Powers' defeat at the Dobro Pole played a role in the Bulgarian withdrawal from the war and opened the way for the subsequent liberation of Vardar Macedonia.The Macedonian Front was thus established in an effort to support the remnants of the Serbian army in liberating their homeland