Simplify the following text for a Grade 10 native English-speaking person.
Original: With his main objectives reached and winter approaching , Germanicus ordered his army back to their winter camps , with the fleet incurring some damage from a storm in the North Sea .
Simplified: With his main goals reached and winter coming , Germanicus ordered his army back to their winter camps , with the fleet incurring some damage from a storm in the North Sea .