Why do marines and Navy hate eachoder

[Marksman]

I cant figur it out,probably becouse im not from USA :?:

 

[RnderSafe]

Probably because there is nothing to figure out. The Navy and Marine Corps work closely together, as in all areas of the US military, there are healthy rivalries between differing jobs/branches/ranks, etc. That say, when push comes to shove, everyone works together as a team.