What were some important decisions that Cleopatra made and how did they affect her?

Cleopatra made several pivotal decisions that significantly impacted her reign and legacy. Her alliances with powerful Roman leaders, such as Julius Caesar and Mark Antony, were strategic moves to bolster her position in Egypt and fend off threats from her brother Ptolemy XIII and later, Octavian. These relationships not only provided military support but also secured her a prominent place in Roman politics. However, her allegiance to Antony ultimately led to her downfall, as it antagonized Octavian, resulting in the defeat of both Antony and Cleopatra, which marked the end of the Ptolemaic rule in Egypt and her tragic demise.