According to her Instagram account, Anastasia Lenna, a beauty queen who represented Ukraine in 2015 in the Miss Grand International beauty contest, has reportedly joined the Ukrainian military and has warned that anyone who crosses the border with the intention of invading will be killed.

“Everyone who crosses the Ukrainian border with the intent to invade will be killed!” she said in a post on Saturday, which included photo of armed soldiers blocking a road.

“Our [Ukraine’s] army is fighting in such a way that NATO should apply for entry into Ukraine,” she said in another post to her 75,000 followers.

Lenna studied at Kiev Slavistik University and is fluent in five languages, having worked as a model and a public relations manager in Turkey, according to her Miss Grand International profile.