“Triangular diplomacy”, a term coined by former US secretary of state Henry Kissinger in reference to the confrontation and cooperation between the US, the Soviet Union and China during the cold war, seems to be back again, but in a new form and with new strategic significance. The strategy explained the informal alliance between Washington and Beijing; US president Richard Nixon and Kissinger managed, 45 years ago, to pit Beijing and Moscow against each other by forging a closer partnership with China