What is the highest British military award?

the highest british military decorations is the Victoria Cross (VC)

there are also other awards in order:

• Victoria Cross
• George Cross
• Conspicuous Gallantry Cross
• Royal Red Cross (Class I)
• Distinguished Service Cross
• Military Cross
• Distinguished Flying Cross
• Air Force Crosshttp
• Royal Red Cross (Class II)

and i think there are loads more.