Traditional Shinobi Sparring

The Traditional Ninja Spar it's a combat training technique that has been passed down for generations in Konohagakure between two opponents from the same village. According to protocol, the two opponents must face each other and make the symbol of "Combat", which represents one half of a seal that might be used to activate a ninjutsu and means "I've come to face you in battle." When the spar is over, both participants make the "Combat" symbol and lock their fingers together to make the "Harmony" symbol and acknowledge that they are still comrades.

Trivia

 * When Naruto and Sasuke first sparred, they refused to make the "Harmony" symbol. However, years later, when the Rasengan and the Chidori clash, both Naruto and Sasuke see a vision of their younger selfs, smiling and finally making the "Harmony" symbol.