Covenant Mission to Sword Base

The Covenant Mission to Sword Base commonly referred to as Operation Eternal Prayer was a specially designed event during the Human Covenant War, that was unleashed by the crew of the Prevalence of Trust on July 22nd, 2552, in order to salvage data off of Reach, which revealed the location of a Forerunner structure located on the planet.

The attack was led by Thalienhelios, and was rendered a tremendous success for the Covenant, and resulted into the destruction of Sword Base's official research center along with the eradication of all evidence considering the assault. At the end of the operation, the UNSC were unable to pin the attack on the Covenant, due to all traces of plasma damage and bodies being removed, and placed the accusation on the Insurrectionist, that would later caused Reach to become locked down in hopes of cutting off the Rebels, it wasn't discovered until August of 2552, that the assault was conducted by the Covenant.

This event became known as the first major engagement where Covenant Forces set foot on Reach, and was also the main opening of the Reach Campaign, that occurred 2 days before the Winter Contingency was declared.