https://www.jns.org/author/ruslan-antoniuk Ruslan Antoniuk, Ph.D., is an expert in international relations with a specialization in security studies. For many years, he has advised Ukrainian government bodies as well as private actors seeking to operate in the country. en-US Tue, 10 Mar 2026 18:00:00 GMT https://www.jns.org/opinion/ruslan-antoniuk/kyiv-studies-war-against-tehran-eyeing-direct-implications-for-its-own-security 0000019c-f892-dbb3-addc-f9d3bfed00d0 Tue, 10 Mar 2026 18:00:00 GMT https://www.jns.org/opinion/ruslan-antoniuk/kyiv-studies-war-against-tehran-eyeing-direct-implications-for-its-own-security https://www.jns.org/opinion/ruslan-antoniuk/ukraines-fence-sitting-on-israel-a-moral-and-strategic-failure 0000019c-c094-d325-af9e-d7f48c800036 Mon, 09 Feb 2026 21:25:41 GMT https://www.jns.org/opinion/ruslan-antoniuk/ukraines-fence-sitting-on-israel-a-moral-and-strategic-failure