Question: From what is well known is that a woman should cover her face. Is this so even in the lands of disbelief in which it may cause things to become straitened/restricted for her?
Answer: “Yes, the rulings of the Allah are the same in the land of Islam and the land of disbelief. Even if things become straitened/restricted for her, with people noticing her etc. She should be patient and seek reward from Allah. Allah, the Exalted defends those who believe [22:38]. It has reached me from some people that their wives and those who are with them cover their faces [in the lands of disbelief], and no one bothers them regarding that. However, perhaps it differs in accordance to the different lands. In any case, what is obligatory is to apply the rulings of Allah in the land of disbelief and the land of Islam”.
Faisal Ibn Abdul Qaadir Ibn Hassan