Possible Clues:

• Henry's alias in war dance
• Commencement of hostilities, also known as a war dance
• Beethoven's fifth sometimes called for aggressive dancing
• Maori war dance
• All Blacks war dance
• Threatening All Blacks team effort
• Hostile introduction also called an intimidatory chant
• Dance that expresses joy and spirit
• Maori war chant by rugby players
• Journalist wants drop of Cognac, a pre-match ritual