Ptolemy V. Epiphanes came to the throne at the age of 5 years in 204 BC. This situation was used by the Syrian King Antiochus III. and King Philip V. of Macedon, who divided the Egyptian dependencies in Asia Minor (Anatolia) and in the Aegean Sea. The guardians of the young King turned to Rome with a request, because Rome became the strongest state in the Mediterranean after the defeat of Carthage in the second Punic war.
The fifth Syrian war
The Seleucid army broke into the Palestina territory right at the beginning of the fifth Syrian war (202 – 195 BC). The army had to retreat temporarily, but after Antiochus' arrival, who fought against the Pergamon King Attalus I in Anatolia in the meantime, they gained the decisive victory. Southern Syria, Phoenicia and major part of Palestina became parts of the Syrian Empire.
Ptolemy V. Epiphanes continued in traditional Ptolemaic support of the Greeks, who were in opposition to the Macedonia. He provided financial means and ships to the Achaean League. It seems that the Egyptians counted on a new war against Antiochus and tried to gain mercenaries for it in Greece. But the fight didn't happen and Ptolemy V. was poisoned in 180 BC. The situation in Egypt after his death was similar to the one after his coming to the throne.
Ptolemy V. Epiphanes