 These actions worked to renew Sextus' blockade of Italy, preventing Octavian from sending the promised troops to Antony for the Parthian campaign.This new delay caused Antony to quarrel with Octavian, forcing Octavia to mediate a truce between them.Under the Treaty of Tarentum, Antony provided a large naval force for Octavian's use against Sextus while Octavian promised to raise new legions for Antony to support his invasion of Parthia.