Complex sentence: The first general election the alliance contested was the 2005 general election however it did contest the 2004 elections, both local and European elections, securing 13,776 but no seats in the European election.
Split into simpler sentences: The first general election the alliance contested was the 2005 general election. However, in 2004 it had contested both the local elections the European elections, securing 13,776 but no seats in the European election.