The Queen described President Xi Jinping's State visit to Britain as a "defining moment" for the future of Sino-UK relations as the Chinese leader spoke of the "everlasting friendship" between the two countries.
Barely two years after full diplomatic relations were restored, Xi said his four-day visit would lift the bilateral relationship to "a new height".
The first day of his stay in the UK, during which 30 billion ($68.9 billion) of trade deals are expected to be agreed, ended with a State banquet that reflected both the pomp and the pressure of a day in which tension was never far from the surface.
The dinner table at Buckingham Palace glistened with gold but the deliberate absence of the Prince of Wales from the set-piece event was a constant reminder that China's record on human rights remains a barrier in its relations with the West.