Login to your Defense.com account and click the Education icon on the navigation menu.
From the expanded menu select Training Campaigns.
Select View on the Training Campaign you wish to update the deadline for. These campaigns will be in either In Progress, Upcoming, or Completed.
The steps will differ depending on whether the campaign has a Fixed Duration or an Individual Duration. A campaign with a Fixed Duration will show an end date that contains a specific date; A campaign with an Individual Duration will show the duration in weeks.
Fixed Duration
Individual Duration