The term 'What's Fair in Love and War' is a proverb that has been used for centuries to describe the idea that different rules may apply in certain situations, such as when two people are in love or when two countries are at war. This phrase is often used to justify certain actions that would otherwise be considered unethical or immoral. The crossword solutions for this term are ALL, which stands for 'all is fair'. This phrase implies that anything goes in certain situations, and that it is acceptable to do whatever is necessary to achieve a desired outcome.