Do not under value or underestimate tawheed!
Shaykh Saleh al Fawzaan hafidhahullah states:
This is what brings about true salvation, safety, victory, and strength in the land – correcting the ‘aqeedah and then correcting the deeds. Without this, disasters and punishments will continue to befall whoever does not completely fulfill the condition (for Allaah’s Aid). Being conquered by the enemies is only the result of the Muslims not fulfilling this necessary condition, their lack of proper concern for their ‘aqeedah and Religion, and their contentment with carrying Muslim names and nothing more.
Please read the whole article:
The Importance of Towheed and the Evil Result of Neglecting It
Part 1 of a series of translated articles from the book, Lessons from the Noble Quran (pp.5-11) by Shaykh Saalih al-Fowzaan (may Allaah preserve him), translated by Moosaa Richardson.