The phrase "a joint declaration between" is correct and usable in written English.
It can be used when referring to a formal statement or agreement made collaboratively by two or more parties.
Example: "The leaders of the two countries issued a joint declaration between their governments to strengthen diplomatic relations."
Alternatives: "a collaborative statement from" or "a mutual declaration by".
A joint declaration at Whitehouse.gov between the United States and Laos reads, "The two leaders noted the positive outcomes of the ongoing U.S. Government-funded School Feeding Program, for which the U.S. Government is currently providing over $27 million in funding over five years".
The arrival of John Kerry in London on the first stop of his first foreign trip – followed by the ritual invocation of the 'special relationship' between the US and UK – and a joint declaration of intent on Middle East peace all point to a return to business as usual in American foreign policy-making.
According to reports from Madrid, one of Mr. Zapatero's biggest cheerleaders, Leire Pajin, is even talking about this semester's routine E.U.-United E.U.-United Statesing (usummit an hour's chat, a joint declaration and lunch) as an event of "planetary" significance between "two progressive forces fromeetingsides of the Atlantic".
On May 18th most political parties signed a joint declaration of support for the army's campaign.
Under ideal diplomatic circumstances, Russia and China would be persuaded to join with Nato in a joint declaration.
The opposition Socialists and Communists made a joint declaration, promising to create 700,000 jobs and reduce the working week.Violence returned to the breakaway Russian republic of Chechnya, with fighting on the border between Russian police and Chechens.
As a result, Leopold and King Frederick William II of Prussia issued a joint declaration (the Declaration of Pillnitz, August 1791) expressing concern about the developments in France.
Governments in Bosnia, Croatia, Montenegro and Serbia recently signed a joint declaration to launch a regional programme for the remaining refugees.
Yesterday, George Osborne and Iain Duncan Smith penned a joint declaration: benefits would be cut by a further £12bn, starting this July.
