Britain's decision to leave the European Union may weaken the continent's relations with both Japan and China and leave all parties looking to realign their relationships, analysts have said.

A European Union without Britain may, for example, take a softer line on China's human rights record and territorial claims.

But Britain itself will have a diminished presence. Analysts say the June 23 referendum will leave the nation unable to improve its trading relations with Japan or China, as London will lack political credibility outside the bloc.