Because they were stronger united than they were divided, and being weaker they were susceptible to attacks
The answer that best completes the statement is this: MORE PRODUCTIVE. Capitalist economic systems are said to be more productive compared to the socialist economic systems. Capitalism and Socialism are two of the formal economies. The reason why the capitalist economic systems are said to be more productive is that they are made up of both the buyers and the sellers and the main intention is business and to make profit. In contrast to socialist economic systems, they are only operated by public cooperatives.
Ghazis was a Muslim fighters who fought non Muslims. Ghazi(warrior)
He updated the old western Roman Empire laws to make them compatible with the remaining eastern Roman Empire which was about all that was left by the time he came to power in the 6th century.