The full text of Straujuma's message - delivered exactly a year after Latvia's own Eurozone accession, reads:
Dear brother nation,
Today Lithuania is joining the largest economic union in the world and the political core of the European Union. Lithuania’s knight Vytis is joining Latvia’s Milda and the Estonian land.
From now on the Baltic States will also be united by another symbol – euro which will contribute to strengthening and consolidating our peoples. I am particularly glad that this event marks the beginning of Latvia’s Presidency in the Council of the European Union.
Dear Lithuanian people, welcome to the euro zone!”
Straujuma's message will be broadcast on Lithuanian TV while Foreign Minister Edgars Rinkevics will be in Vilnius in person.
On my way to Vilnius to join celebrations of adoption of #euro, #Lithuania becomes the 19th member of #Eurozone tomorrow. Congratulations!
— Edgars Rinkēvičs (@edgarsrinkevics) December 31, 2014
Straujuma has promised she "will address her Lithuanian colleagues and people of Lithuania in their national language," following the example for former Estonian Prime Minister Andrus Ansip who wowed the crowds in Riga last year by speaking at some length in Latvian.
The European Central Bank, which has overall responsibility for the euro, has produced a short film about Lithuania's euro accession (in English).