Long Live Life

Coldplay produces music which argues points without directly saying their argument. In their song "Viva La Vida" Coldplay makes a strong religious argument. Throughout the song, there are references to Christianity and more specifically the French Revolution. The song contains many lines which directly refer to the crusades as well. 

Revolutionaries wait

For my head on a silver plate

Just a puppet on a lonely string 

Oh who would ever want to be king?

The song references revolutionaries who are revolting against a king, and are not able to have their own actions. The "puppet on a lonely string" is a personification for the people who can not have actions they desire.  The whole song has lines that reference revolutions as a whole, but more specifically the French Revolution.
Additionally, the song contains many religious references such as the crusaders.

Be my mirror, my sword and shield

My missionaries in a foreign field

The "missionaries in a foreign field" who are the speaker's sword and shield, is a reference to the crusaders. The people are going for their country to get people to join them in the religion. This song aludes to the French Revolution and the crusaders trying to get a long prosperous life for their countries.