Question: The 2012 Spengler Cup was held in Davos, Switzerland between 26 and 31 December 2012, all matches were played at HC Davos's home known as Vaillant Arena, an arena in Davos, in which country?

Context paragraphs:
2015 Spengler Cup: The 89th Spengler Cup was an ice hockey competition held in Davos, Switzerland between 26 and 31 December 2015.  All matches were played at HC Davos's home known as Vaillant Arena.  Six competing teams were split into two groups of three (in the round-robin series).  The two groups, named Torriani and Cattini, are named after legendary Swiss hockey players Richard 'Bibi' Torriani and the Cattini brothers, Hans and Ferdinand.

2016 Spengler Cup: The 90th Spengler Cup was an ice hockey competition being held in Davos, Switzerland between 26 and 31 December 2016.  All matches were played at HC Davos's home known as Vaillant Arena.  Six competing teams were split into two groups of three (in the round-robin series).  The two groups, named Torriani and Cattini, are named after legendary Swiss hockey players Richard 'Bibi' Torriani and the Cattini brothers, Hans and Ferdinand.

2011 Spengler Cup: The 2011 Spengler Cup was held in Davos, Switzerland between 26 and 31 December 2011.  All matches were played at host HC Davos's home Vaillant Arena.  The number of teams was expanded in 2010 from 5 to 6 in comparison to previous seasons, and split into two groups of three.  The two groups, named Torriani and Cattini, were named after legendary Swiss hockey players Bibi Torriani and Hans Cattini.  HC Davos won the event for a record 15th time.

2013 Spengler Cup: The 2013 Spengler Cup was held in Davos, Switzerland between 26 and 31 December 2013.  All matches were played at HC Davos's home known as Vaillant Arena.  Six competing teams were split into two groups of three.  The two groups, named Torriani and Cattini, were named after legendary Swiss hockey players Richard 'Bibi' Torriani and the Cattini brothers, Hans and Ferdinand.

Spengler Cup: The Spengler Cup is an annual invitational ice hockey tournament held in Davos, Switzerland.  First held in 1923, the Spengler Cup is often cited as the oldest invitational ice hockey tournament in the world.  The event is hosted by the Swiss team HC Davos and played each year in Davos, Switzerland, between Christmas (December 25) and New Year's Day.  Currently, all games are held at Vaillant Arena.

2014 Spengler Cup: The 88th Spengler Cup was an ice hockey competition held in Davos, Switzerland between 26 and 31 December 2014.  All matches were played at HC Davos's home known as Vaillant Arena.  Six competing teams were split into two groups of three (in the round-robin series).  The two groups, named Torriani and Cattini, were named after legendary Swiss hockey players Richard 'Bibi' Torriani and the Cattini brothers, Hans and Ferdinand.

Vaillant Arena: Vaillant Arena (Eisstadion Davos) is an arena in Davos, Switzerland.  It is primarily used for ice hockey and is the home arena of HC Davos.  It holds 7,080 people, of which 3,280 are seated.  Every year the Spengler Cup is played in this arena.

2012 Spengler Cup: The 2012 Spengler Cup was held in Davos, Switzerland between 26 and 31 December 2012.  All matches were played at HC Davos's home known as Vaillant Arena.  Six competing teams were split into two groups of three.  The two groups, named Torriani and Cattini, were named after legendary Swiss hockey players Richard 'Bibi' Torriani and the Cattini brothers, Hans and Ferdinand.

2009 Spengler Cup: The 2009 Spengler Cup was held, as it always was, in Davos, Switzerland between 26 and 31 December, 2009.  All matches were played at host HC Davos's home Vaillant Arena.  The tournament featured all of the last year's tournament participants except for last year's winners Dynamo Moscow who was replaced by Dinamo Minsk and ERC Ingolstadt who was replaced by Adler Mannheim.

2010 Spengler Cup: The 2010 Spengler Cup was held in Davos, Switzerland, between 26 and 31 December 2010.  All matches were played at host HC Davos's home Vaillant Arena.  The number of teams was expanded from five to six in comparison to previous seasons, and split into two groups of three.  The two groups, named Torriani and Cattini, were named after legendary Swiss hockey players Bibi Torriani and Hans Cattini.

Supporting paragraphs: 2012 Spengler Cup Vaillant Arena
Answer: Switzerland