Answer: Yes you can. when you capture an outpost, the count down for occupation starts right away, after that countdown if none of enemy can capture it, it will be yours.
Some extra relevant information:
In Rise of Kingdoms, the Ark of Osiris is an exciting event where players compete against each other to capture and hold outposts. Once you successfully capture an outpost, you may wonder if it is possible to disband your troops from it or change the garrison leader.
Unfortunately, once you have stationed your troops in an outpost during the Ark of Osiris event, you cannot disband them or change the garrison leader. The troops will remain stationed there until the outpost is captured by another alliance or the event comes to an end.
It is important to make strategic decisions when deciding which troops to deploy and who to assign as the garrison leader. Since you cannot make changes once the troops are stationed, it is crucial to select a strong garrison leader who can defend the outpost effectively against enemy attacks.
When participating in the Ark of Osiris event, teamwork and coordination with your alliance members are essential. Make sure to communicate and plan your strategies accordingly to maximize your chances of success.
Remember, the Ark of Osiris event is designed to encourage competitive gameplay and strategic thinking. By utilizing the right tactics and working together with your alliance, you can dominate the battlefield and emerge victorious.