Which Christian church has most Tuvaluans traditionally belonged to?

The vast majority of the population in Tuvalu belongs to the Church of Tuvalu, which was formerly known as the Ellice Islands Protestant Church.1

Protestant Christianity was firmly established in the islands by 1900, following the arrival of Samoan pastors from the London Missionary Society in the 1860s. While the country has no official religion, the Church of Tuvalu remains a central institution, even collaborating with the government to provide secondary education for students.213