God’s mighty power is displayed by wiping out a multinational attack against Israel in the future.

For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God.
Ephesians 2:8 (NIV)
God’s mighty power is displayed by wiping out a multinational attack against Israel in the future.
The four horsemen appear at the midway point of the tribulation period and coincide with the first four seals.