Secret Objective: If you are the attacking player, you may choose an enemy objective that you have not engaged this phase. If you do, you are now engaged with the chosen objective instead.
Entrenched Defense: When 1 of your other objectives is engaged, your opponent engages this objective instead.
If I declare an engagement against DLOTS, say, and my opponent redirects my attack to ED am I considered to have engaged DLOTS? Or can I redirect my attack back to DLOTS with Secret Objective?