I think the answer is: <span>Chairman of the Joint Chiefs of Staff
This section is really important because In real-life scenario, many situations may arise that require the combination more than one military branches. For example, in military battles that happened in the middle of Ocean, the combination of both Air force and the Marine corp is crucial to achieve the upper hand in the battle. </span>
<span> its control over facets of society other than religion. The medieval Christian Church's missionary activity was successful in all the following conversions EXCEPT.</span>
Maurya Empire and Gupta Empire are the most significant but there has been more than that.
Hope this helps!