Looking specifically at Japanese infantry tactics: There the influence dates back of course to the warrior traditions of Japan, closing with the enemy for close combat ect.. but note not all the Samuri or medeival warrior traditions were promoted. Skill with the bow was not adapted to modern hyper marksmanship as with the British in the early 20th Century. Unlike the Navy which looked to Britain for naval modernization the embryonic Japanese Army turned to France, which had the best reputation mid 19th Century. From that they acquired the idea of 'Elan' 'Cran', the shock tactics of the Revolutionary & napoleonic era, and rapid action. This worked or seemed to. vs the Koreans, Chinese, and Russians to 1906 the concept of shock close assault appeared validated. The value of firepower and good planning were evident and accepted, but so was the value of a bayonet charge.
The inability of Japans industry to provide the high firepower or mechanized formations in quantity left Japans army leaders looking towards their human capitol. Brilliant infantry tactics were one solution,m but the question is what are brilliant tactics. Against bandits, the Manchurian local forces, Chinese Warlord soldiers, or other ill trained and led conscripts. The concepts of the "Bamboo Spear" tactics worked well. Disrupt the enemy with some light precision delivers supporting fires: snipers, MG, mortars, & light cannon... While individuals and small groups infiltrated the enemy defense. At the right moment a series of bayonet charges with hand grenades and swinging swords would panic the demoralized enemy. The experience of the China Incident seems to validate this. While a few well led KMT formations did give the Japanese Army a hard time, the other 90% of the fighting was the model presented for designing low cost doctrines.
This worked till it didn't. Against the ill trained formations the Brits fielded in Mtaylasia, the entrain Philippines Army, or the bulk of the Dutch in the DEI the Bamboo Spear proved successful. There were warning signs, but there was little the average IJA commander could do. Some tried, but the resources were not there. So, against Australians led by veterans of the Great War or the Mediterranean cockpit, or Marines again led by veterans of bush fighting in Nicaragua & Hati the spear broke. Disciplined and well trained soldiers were entirely different matter from hungry abused and neglected Chinese peasant boys.