The Philippics (Latin: Philippicae) are a series of speeches delivered by Cicero in 44-43 BCE attacking Mark Anthony. Their name reflects the fact that they were modelled on speeches of the great Athenian orator Demosthenes against King Philip of Macedon in the 4th Century BCE.
The Philippics were delivered in the period following the assassination of Julius Caesar, when Cicero emerged as a leader of the senatorial party, despite his exclusion from the assassination plot itself. Several of the speeches sought to exploit the emergence of Octavian as a potential rival to Mark Anthony for leadership of the Caesarian party. However, after Octavian and Mark Anthony formed the second triumvirate, Anthony insisted on Cicero's inclusion in the proscriptions being drawn up against their political opponents. When Cicero was caught and executed, Anthony notoriously ordered the hands that wrote the Philippics cut off.
Free online texts
Internet Archive: Philippics, translated by Walter Ker. Multiple formats, Loeb edition in Latin and English.
Latin Library: Philippicae. Latin text, HTML format.
Loebulus. L189 - Cicero - Philippics. PDF of public domain Loeb edition in Latin and English.
Perseus: The fourteen orations against Marcus Antonius (Philippics), translated by C. D. Yonge (1903). HTML and XML format.
Wikisource: In M. Antonium Philippicae. Latin text, multiple formats.
Librivox: The Philippics - public domain audiobook.
The Great Conversation: Further reading at Tom's Learning Notes
Cicero on Rhetoric
Latin resources: Learn to read Latin texts in the original.