Answer: Here is some help.
Step-by-step explanation:
In the photo it shows,
A the plane - The increase of technology by foreign affairs and the trading they have been doing with other countries.
B The Military man - The increase of defense and men and women to defend trades and protect other countries from corruption (including the US).
C Security Camera - The security they have been increasing for those they are trading with and for the US.
D Homeland Security Advisory System - The increase of security in the USA and the Borders from Mexico.