Oksana Markarova, Ukraine’s ambassador to the United States, will attend the president’s State of the Union address Tuesday as a guest of first lady Jill Biden, the White House announced.

Markarova is expected to sit in the first lady’s viewing box in the House chamber in a show of solidarity between the United States and Ukraine, which is enduring an unprovoked invasion by Russia. Biden has retooled his address to focus heavily on the ongoing assault and his efforts to rally allies in opposition.

Second gentleman Douglas Emhoff, the husband of Vice President Harris, and Valerie Biden Owens, the president’s sister, are also expected to join the first lady in the viewing box.

According to the White House, other guests of Jill Biden include: Joseph “JoJo” Burgess of Washington, Pa., a steelworker; Joshua Davis of Midlothian, Va., a seventh-grader and diabetes advocate; Refynd Duro of Galloway, Ohio, a nurse who has been treating covid-19 patients; Patrick Gelsinger of Santa Clara, Calif., chief executive of Intel; Frances Haugen of Iowa City, a former Facebook lead product manager on civic misinformation; Melissa Isaac of Mount Pleasant, Mich., a former director of education for the Saginaw Chippewa Academy; Danielle Robinson of Columbus, Ohio, the surviving spouse of a military veteran exposed to environmental hazards; and Kezia Rodriguez of North Bergen, N.J., a community college student.