Question: Rail Baltica is a high-speed rail project to link Poland and the Baltic States with which other northern European country?

<P0-S0>  It envisages a continuous rail link from Tallinn (Estonia), to Warsaw (Poland), via Riga (Latvia) and Kaunas (Lithuania). <P0-S1>  It will bypass the Kaliningrad Oblast (Russia) and Hrodna (Belarus), which have historically hosted two Poland–Lithuania rail routes. <P0-S2> Rail Baltica (in Estonia known as Rail Baltic) is a project to link Finland, the Baltic States and Poland with a standard gauge rail line, providing passenger and freight service between the countries and improving rail connections between Central and Northern Europe. <P0-S3>  Rail Baltica is one of the priority projects of the European Union: "Trans-European Transport Networks" (TEN-T). <SEP> <P1-S0> Current plans call for a high-speed Rail Baltica that will connect the Latvian capital Riga with Pärnu and Tallinn to the north and with Kaunas and Warsaw to the south. <P1-S1>  Reports in March 2011 indicate plans are moving towards a standard gauge railway. <SEP> <P2-S0> The Naples–Salerno high-speed railway line (also known in Italian as the Linea a Monte del Vesuvio, meaning the "line up Mount Vesuvius") is a link in the Italian high-speed rail network opened in June 2008. <P2-S1>  The 29 kilometre-long line is one of the new high-speed lines being built to strengthen rail transport system in Italy and in particular freight and passenger transport in Campania. <P2-S2>  The line is part of Corridor 1 of the European Union's Trans-European high-speed rail network, which connects Berlin and Palermo. <SEP> <P3-S0> High-speed rail is emerging in Europe as an increasingly popular and efficient means of transport. <P3-S1>  The first high-speed rail lines in Europe, built in the 1980s and 1990s, improved travel times on intra-national corridors. <P3-S2>  Since then, several countries have built extensive high-speed networks, and there are now several cross-border high-speed rail links. <P3-S3>  Railway operators frequently run international services, and tracks are continuously being built and upgraded to international standards on the emerging European high-speed rail network. <P3-S4>  In 2007, a consortium of European railway operators, Railteam, emerged to co-ordinate and boost cross-border high-speed rail travel. <P3-S5>  Developing a Trans-European high-speed rail network is a stated goal of the European Union, and most cross-border railway lines receive EU funding. <P3-S6>  Several countries — France, Spain, Italy, Germany, Austria, Sweden, Belgium, the Netherlands, Russia and the United Kingdom — are connected to a cross-border high-speed railway network. <P3-S7>  More are expected to be connected in the coming years as Europe invests heavily in tunnels, bridges and other infrastructure and development projects across the continent, many of which are under construction now. <P3-S8>  Alstom was the first manufacturer to design and deliver a high speed train or HS-Train, which ended up in service with TGV in France. <P3-S9>  Currently, there are a number of high-level manufacturers designing and building HSR in Europe, with criss-crossed alliances and partnerships, including Canadian company Bombardier, Alstom itself, the Spanish Talgo and the German Siemens.