Which of the following contributed to the increased economic and military power of the Sumerians?
Cause. Effect
Increased economic and.
military power
A. A standing army of many trained soldiers
B. The formation of alliance with other city states
C. A series of highly strategic army leaders
D. The development of bronze to make weapons
A. A standing army of many trained soldiers
C. A series of highly strategic army leaders
D. The development of bronze to make weapons