He demands that the Senate show solidarity with Octavian and Decimus Junius Brutus. 4th Philippic (speech in the public assembly, 20 December 44, in the afternoon): Cicero considers Mark Antony as a public enemy and argues that peace with Antony is inconceivable. 5th Philippic (senatorial speech, in the temple of Jupiter, 1 January 43, in the presence of the new consuls Aulus Hirtius and Gaius Vibius Pansa Caetronianus): Cicero urges the Senate not to send an embassy to Mark Antony and warns against Antony's intentions.