Answer:
The Persian wars against Greece were caused because the Darius, the Persian king, wanted to expand their empire. The wars took place in the early 5th century B.C. but the first attack was around 490 B.C. but the Persians lost. King Darius was humiliated and wanted to continue on which caused the series of wars.
Step-by-step explanation:
The catalyst for the first Persian war stemmed from a revolt by Greek Ionians. It was instigated by Aristagoras, economic burdens, and a feeling of being treated unfairly by the Empire. Athens came to the Ionians aid. During the rebellion, one of the Persian capital cities, Sardis, was burned
ITS EITHER ONE OF THESE TWO