The Pact of Misenum was a treaty

Treaty

A treaty is an express agreement under international law entered into by actors in international law, namely sovereign states and international organizations. A treaty may also be known as an agreement, protocol, covenant, convention or exchange of letters, among other terms...

 which ended the naval blockade

Blockade

A blockade is an effort to cut off food, supplies, war material or communications from a particular area by force, either in part or totally. A blockade should not be confused with an embargo or sanctions, which are legal barriers to trade, and is distinct from a siege in that a blockade is usually...

 of the Italian Peninsula

Italian Peninsula

The Italian Peninsula or Apennine Peninsula is one of the three large peninsulas of Southern Europe , spanning from the Po Valley in the north to the central Mediterranean Sea in the south. The peninsula's shape gives it the nickname Lo Stivale...

 during the Sicilian revolt

Sicilian revolt

The Sicilian revolt was a revolution against the Second Triumvirate of the Roman Republic which occurred between 44 BC and 36 BC. The revolt was led by Sextus Pompeius, and ended in a Triumvirate victory.- Context :...

. The pact was signed in 39 BC between Sextus Pompeius

Sextus Pompeius

Sextus Pompeius Magnus Pius, in English Sextus Pompey , was a Roman general from the late Republic . He was the last focus of opposition to the Second Triumvirate...

 and the members of the Second Triumvirate

Second Triumvirate

The Second Triumvirate is the name historians give to the official political alliance of Octavius , Marcus Aemilius Lepidus, and Mark Antony, formed on 26 November 43 BC with the enactment of the Lex Titia, the adoption of which marked the end of the Roman Republic...

. The triumvirs allowed Sextus Pompeius to retain his control of Sicily

Sicily

Sicily is a region of Italy, and is the largest island in the Mediterranean Sea. Along with the surrounding minor islands, it constitutes an autonomous region of Italy, the Regione Autonoma Siciliana Sicily has a rich and unique culture, especially with regard to the arts, music, literature,...

 and Sardinia

Sardinia

Sardinia is the second-largest island in the Mediterranean Sea . It is an autonomous region of Italy, and the nearest land masses are the French island of Corsica, the Italian Peninsula, Sicily, Tunisia and the Spanish Balearic Islands.The name Sardinia is from the pre-Roman noun *sard[],...

 and also granted him control of Corsica

Corsica

Corsica is an island in the Mediterranean Sea. It is located west of Italy, southeast of the French mainland, and north of the island of Sardinia....

 and the Peloponnesus. They also promised him a future augurate and consulship. In exchange, Pompeius agreed to end his blockade of Italy, supply Rome with grain, and halt his piracy.

The Pact later fell apart when the Triumvir Mark Antony

Mark Antony

Marcus Antonius , known in English as Mark Antony, was a Roman politician and general. As a military commander and administrator, he was an important supporter and loyal friend of his mother's cousin Julius Caesar...

 refused to cede control of Achaea

Achaea

Achaea is one of the regional units of Greece. It is part of the region of West Greece. It is situated in the northwestern part of the Peloponnese peninsula. The capital is Patras. The population exceeds 300,000 since 2001.-Geography:...

. Pompeius then resumed hostilities against Rome

Roman Republic

The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

, before being defeated at the naval Battle of Naulochus

Battle of Naulochus

The naval Battle of Naulochus was fought on 3 September 36 BC between the fleets of Sextus Pompeius and Marcus Vipsanius Agrippa, off Naulochus, Sicily...

 by the Republican general Marcus Vipsanius Agrippa

Marcus Vipsanius Agrippa

Marcus Vipsanius Agrippa was a Roman statesman and general. He was a close friend, son-in-law, lieutenant and defense minister to Octavian, the future Emperor Caesar Augustus...

.