They supplied weapons to Britain.
No. The US had some fighter biplanes attached to the USS Macon and USS Akron and those planes were called Sparrowhawks.
to be neutral
He was Lord of the Admiralty.
If you are referring to WW1, then russia left early
The USS Caine is a fictional ship in the book "The Caine Mutiny" which is a converted WW1 ship, The story is set in a a historic typhoon in 1944 and is about a non=violent mutiny.
tannenberg
Reconnaissance, bombing and air combat.
WW1
They had a treaty with great Britain
Being the major force against the Germans.
USS Texas is the only dreadnaught remaining afloat. It is a WW1 ship. Her last war was WW2. Her sister was the battleship USS New York, which was sunk in the Pacific Ocean as a target, after WW2. The only US battleship to fight in Vietnam was the Iowa class battleship USS New Jersey.
By no means. Most of the aircraft in World War 1 engaged in dogfights or gorund support missions. However given the short range, poor bombsights, and poor bomb load of these early aircraft their role was fairly minimal.