Buddhism as an organized religion is opposed to warfare. That is the mainstream and majority view and practice. It derives its legitimacy from the Buddhist suttas. The First Precept — "I undertake the precept to refrain from taking life" — is universal across Theravāda, Mahāyāna, and Vajrayāna traditions.

Nationalistic deviations exist, have existed and will likely continue to emerge. These are Buddhist in name only — political appropriations of a tradition that fundamentally rejects violence.

The Buddha's teachings are available to anyone, can be practiced by anyone, and are unbound by culture, nation, or ethnicity.

> The ocean doesn’t accommodate a carcass, but quickly carries it to the shore and strands it on the beach. In the same way, the Sangha doesn’t accommodate a person who is unethical, of bad qualities, filthy, with suspicious behavior, underhand, no true ascetic or spiritual practitioner—though claiming to be one—rotten inside, festering, and depraved. But they quickly gather and expel them. Even if such a person is sitting in the middle of the Sangha, they’re far from the Sangha, and the Sangha is far from them.

— Anguttara Nikāya 8.19

What is it to be unethical? The First Precept, which prohibits the taking of life, is the first qualification of an ethical person and the first qualification to be a member of the Sangha: the community of Buddhist practitioners that includes laypeople, monks and nuns.

You continue to play a game of qualifying Buddhism under what cannot be qualified. When pressed for first-party sources justifying violence in Buddhism, you come up empty-handed and instead return to nationalistic violence flown under a false flag that is an abomination to Buddhism. You go on to then state that a majority of organized Buddhist faith allows for warfare and violence, which is false. It simply is not true that a majority of Buddhist denominations agree that warfare and violence are acceptable means of conduct.