I have dual citizenship, one of them is Ukrainian, will I be affected by the law on assistance to Ukrainian citizens?

Yes, dual citizenship does not affect whether you will be covered by the Law on Assistance to Ukrainian Citizens or not.

The Act of March 12, 2022 on Assistance to Citizens of Ukraine in Connection with the Armed Conflict in the Territory of that State covers Ukrainian citizens who, in the period from February 24, 2022, came to the territory of the Republic of Poland from the territory of Ukraine in connection with hostilities conducted on the territory of that state. the territory of that state, and citizens of Ukraine who have the Polish Card, who, together with their immediate family, came to the territory of the Republic of Poland due to these hostilities. Temporary protection also covers persons who do not have the Ukrainian citizenship of the spouse of a Ukrainian citizen, provided that they came to the territory of the Republic of Poland from the territory of Ukraine in connection with hostilities conducted on the territory of that state, as well as children born on the territory of the Republic of Poland by a mother who is referred to above. a person (i.e. is a citizen of Ukraine who came to the territory of the Republic of Poland from the territory of Ukraine in connection with hostilities conducted on the territory of that state, or a citizen of Ukraine holding a Pole’s Card, who came to the territory of the Republic of Poland with the closest family due to these hostilities, or is a person without Ukrainian citizenship, the spouse of a Ukrainian citizen, provided that she came to the territory of the Republic of Poland from the territory of Ukraine in connection with hostilities conducted on the territory of that state).

Temporary protection in the territory of the Republic of Poland, in the light of the provisions of the special act, covers mainly Ukrainian citizens who meet the above conditions. Protection is also available to those who, apart from Ukrainian citizenship, have the citizenship of another country (the so-called dual citizenship).

Act of 12 March 2022 on assistance to Ukrainian citizens in connection with an armed conflict in the territory of that state (Journal of Laws of 2022, item 583).