source: He left 11,000 troops to garrison the newly conquered region.
target: He left a detachment of 11,000 troops to garrison the conquered region.
references: He left a detachment of 11,000 troops to garrison the conquered region. He left a detachment of 11,000 troops to guard the newly conquered region. He left a group of 11,000 troops to protect the newly conquered region He left the detachment of 11,000 troops to garrison the newly conquered region. He left a squad of 11,000 troops to guard the newly conquered area. He left 11,000 troops to stay in the newly conquered region. He left 11,000 troops to occupy the newly conquered region.