On 12 December 2019, Rudik became the co-chair of the Humane Country Association, created on the initiative of the UAnimals to protect animals from cruelty.

Under Rudik's leadership, Holos also became the first of the parliamentary parties of Ukraine to receive full membership in the Alliance of Liberals and Democrats for Europe (ALDE).

On the day of the Russian invasion, she was in the Verkhovna Rada, where she supported the introduction of martial law and the adoption of all bills necessary for defense.

[20] Rudik has expressed support for the confiscation of seized Russian assets in favor of Ukraine, as well as recognition of Russia as a state sponsor of terrorism for further expansion of sanctions.

[23] In June 2022, she visited Lithuania and Sweden, where she held meetings with the Speaker of the Seimas Viktorija Čmilytė-Nielsen, the Mayor of Vilnius Remigijus Šimašius, and Swedish and Lithuanian parliamentarians to strengthen support for Ukraine.

[26] While taking part in the General Assembly of the Africa Liberal Network, Rudik said that an important task for a politician is the consolidation of political support for Ukraine from the countries of the Global South and noted that it was necessary to convince African liberal partners of the need for real actions in support of Ukraine and international security, to call together with Ukrainians to protect international peace, security and territorial integrity and strengthen Ukraine's position in the Global South.

[27] At a meeting with the Speaker of the US House of Representatives Nancy Pelosi in Washington, D.C., Rudik spoke about publicly supporting the confiscation of Russian assets in favor of Ukraine.

[28] During a meeting with Estonian Prime Minister Kaja Kallas, Kira Rudik presented a project to confiscate Russian assets for the benefit of Ukraine.

[31] At the Global Forum of Women Leaders in Reykjavík, she met with former president of Lithuania Dalia Grybauskaitė and Prime Minister of Iceland Katrín Jakobsdóttir, at which she thanked them for their comprehensive support of Ukrainians' struggle for freedom and democracy.

[33] In ALDE Rudik is responsible for the advocacy of female leadership and the "Alliance of Her" program created for women from various European countries who are starting their careers in politics.

[34] Since the beginning of the Russian invasion of Ukraine, Kira Rudik has been conducting an active information campaign in the leading mass media of the United States, United Kingdom, Canada, and Europe in support of Ukraine, advocating for the provision of military, financial and political support to the country.

She was interviewed by the leading media outlets of the United States, Great Britain and Poland, such as The Guardian,[39] BBC HARDtalk,[40] Euractiv,[41] Rzeczpospolita etc.

[42] Rudik is a columnist for the key Ukrainian internet media outlets Ukrainska Pravda,[43] Liga.net,[44] Livyi Bereh,[45] The New Voice of Ukraine,[46] as well as Western top media platforms such as: The Wall Street Journal,[47] The Hill,[48] The Telegraph,[49] Huffington Post,[50] Atlantic Council,[51] Newsweek etc.