@Bold, of please do care to explain that.
And Senju/Uchiha define what ninjas in Naruto-verse are.. Hashirama is the founder of the current shinobi SYSTEM.. Those who practiced ninjutsu were called ninja, that is pretty much it.
Naruto-verse was originally ran by the Samurai, and then overtime ninjutsu started taking over, giving rise to the ninja system.
That Bold is what support my argument. although they are now a Ninja, but the Samurai way and fighting practice is still shown by Senju and Uchiha clans in the past although it will diminished overall on the Naruto verse and replaced by Ninja practices.
You said by yourself in your post there, I don't said NV is all Samurai but Minority of them is practising or still practising Samurai teaching like Mifune clans.
And at my statement, what I mean is the weapons using and Ninjutsu concept, but in the NV ninjutsu concept is making a real thing to happen by using chakra moulding, like camouflage, invinsible, Mokuton etc rather than using items or some movement
This, I take from Wiki:-
The skills required of the ninja has come to be known in modern times as ninjutsu (忍術?), but it is unlikely they were previously named under a single discipline, but were rather distributed among a variety of covered espionage and survival skills.
Tactics
The ninja did not always work alone. Teamwork techniques exist: for example, in order to scale a wall, a group of ninja may carry each other on their backs, or provide a human platform to assist an individual in reaching greater heights.[67] The Mikawa Go Fudoki gives an account where a coordinated team of attackers used passwords to communicate. The account also gives a case of deception, where the attackers dressed in the same clothes as the defenders, causing much confusion.[31] When a retreat was needed during the Siege of Osaka, ninja were commanded to fire upon friendly troops from behind, causing the troops to charge backwards in order to attack a perceived enemy. This tactic was used again later on as a method of crowd dispersal.[33]
Most ninjutsu techniques recorded in scrolls and manuals revolve around ways to avoid detection, and methods of escape.[8] These techniques were loosely grouped under corresponding natural elements. Some examples are:
Hitsuke – The practice of distracting guards by starting a fire away from the ninja's planned point of entry. Falls under "fire techniques" (katon-no-jutsu).[68]
Tanuki-gakure – The practice of climbing a tree and camouflaging oneself within the foliage. Falls under "wood techniques" (mokuton-no-jutsu).[68]
Ukigusa-gakure – The practice of throwing duckweed over water in order to conceal underwater movement. Falls under "water techniques" (suiton-no-jutsu).[68]
Uzura-gakure – The practice of curling into a ball and remaining motionless in order to appear like a stone. Falls under "earth techniques" (doton-no-jutsu).[68]
I hope you understand on what I'm looking for here.