Who is this "we", paleface?

In a letter to the Telegraph, published today, Sir Fred Catherwood - former chairman of the British Overseas Trade Board, and 15 years a member of the EU Parliament for Cambridgeshire, including a tenure as its Vice President – writes to implore us to accept the EU constitution.

"Of course", he writes, "the proposed European Constitution contains much that we dislike, as do our own British laws. But it is what we and our partners agreed before the arrival of a dozen new states, each with a vote and a veto at the council table…."

"It is what we and our partners agreed…"? And just precisely who is this "we", paleface?