Is it permissible for an unmarried woman to travel alone to Palestine for work and jihad with the intention of martyrdom, without a mahram?

This world is a place of trial, and a Muslim must take care of their soul. There are many means for purifying the soul, among them marriage, which safeguards the soul and helps in its purification. It is not permissible for a woman to travel for jihad without a mahram (definition). The journey of a Muslim to Palestine for jihad at this time is not in the best interest of the Palestinians. It is more appropriate to assist the people of Palestine materially and morally, which is a form of jihad. There is another type of jihad for women, which is Hajj and Umrah (definition). Whoever sincerely hopes for martyrdom, Allah will grant them the status of martyrs, even if they die in their bed.