Related Clues:
- Protest topic, often
- It might be pitched
- Giant conflict
- Hawk's cause
- Original Cabinet department renamed Defense in 1949
- Military encounter
- Hell, to General Sherman
- Mars' domain
- All's fair in it?
- Opposite of 31-Across
- Classic one-word headline
- Vietnam ___
- Ares' realm
- It's hell, they say
- It's good for 'absolutely nothing' according to a 1970 hit