Although, according to a report of the US defense publication, 'The Drive', "The deployment through the Pacific comes at a time of real tension in the South China Sea. Next week, the Chinese People's Liberation Army Navy (PLAN) is expected to stage a series of exercises that are likely intended to simulate the storming of Taiwanese islands in the region."
The deployment to Diego Garcia comes at a time of continuing US tension with China, particularly over the South China Sea. China is set to launch exercises near Taiwan, simulating an amphibious invasion.
After completing about 29 hours of flight, these fighters reached Diego Garcia Military Base from Missouri, USA. Diego Garcia is about one and a half thousand kilometers from Kanyakumari, the southernmost tip of India. The Indo-Pacific Command of America and the Pacific Air Force have shared information about this.

The deployment of these three bombers in recent times is considered very important from the strategic point of view. Because their deployment is related to the recent India-China confrontation. It is believed that the US has deployed the bombers to help India and other allies against China.