Related Clues:

• They've got your back
• Battle buddies
• Gets together
• World War II victors
• 58-Across enemies
• Friendly nations
• 'Us' or 'them' in 'It's us against them'
• WWII side
• WWII winners
• They're with us
• Unites (with)
• They're on your side
• Brothers-in-arms
• Nations united
• Supporters of a cause