The order of play tends to matter in sequential games where rivals must predict best reply-responses

The order of play tends to matter in sequential games where rivals must predict best reply-responses and counter-responses in order to achieve a desired payoff. Discuss an instance in which you used game theory and explain why the relationship between the players was a strategic one. Did the use of a credible threat or commitment affect the outcome? Were there any first-mover of fast-second strategies used?