Fully describe the overall concepts of homeland security and homeland defense. Construct a response that provides the following related to both homeland security and homeland defense:

Primary missions, tasks, responsibilities, operations, etc. for:
Homeland Security and
Homeland Defense.
Highlight those areas that are shared between the two (what overlaps between HLS and HLD?)
Lastly, recommend a definition for homeland security.
Using the overarching themes of the National Security Strategy from 2017, provide your own recommendation for new National Strategy for Counterterrorism (it must be nested under the NSS according to the principle of strategic hierarchy). What key elements and focus areas would you suggest for the part of a new CT strategy that is domestic focused (homeland security, not overseas), and make sure to use the Ends, Ways, and Means strategy framework.