Sex as political power
The sex strike turns something private into a weapon. Lysistrata shows that controlling access to intimacy gives women leverage in a world where they have no legal or military power. The play treats this seriously even while playing it for laughs.
War's cost falls on civilians
Lysistrata's argument to the Magistrate lays this out plainly: women wait, grieve, and age while men fight wars they chose. The play keeps returning to who actually pays for the conflict.
Gender and authority
Every official authority figure in the play is male and ineffective. Lysistrata has no title, no army, and no vote, yet she ends the war. Aristophanes uses this gap between formal power and actual effectiveness to question who should be in charge.
Desire versus discipline
Both sides of the strike struggle with their own wants. The women sneak toward the exits; the men show up desperate at the gates. The play treats desire as a force that undermines rational decision-making on all sides.
Unity across enemy lines
Lysistrata recruits women from Sparta as well as Athens. The play ends with both sides celebrating together. Aristophanes argues that ordinary people on both sides of a war have more in common with each other than with the leaders who keep them fighting.