The US Frit was partly to blame and is at fault, no doubt. A few facts need to be mentioned.

-ACX was on autopilot and had their AIS turned on but the crew was said to be asleep.
-the US Frit had their AIS turned off in busy water traffic. This is not a normal thing to do.

Given this fact, there is no way the ACX's AIS system can detect and alarm the crew of impending collision. Don't expect the US to accept their fault. It's an embarrassment that a high-tech ship with much more maneuverability than a moving ACX cannot avoid this collision. I see a case of negligent on the US Fritz in miscalculating the speed and direction of ACX was going.

More:

https://defence.pk/pdf/threads/us-ship-involved-in-accident.502235/page-6

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USS Fitzgerald, DDG62

http://www.public.navy.mil/surfor/ddg62/Pages/default.aspx

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The question is: Why DDG62 barred the way of ACX?
Because it was full of escaping isis soldiers from Philiphines?

If so, the DDG62 captain should get all honors.

IZAKOVIC