The Israeli military said it was launching an investigation Saturday after a video was posted on social media that appeared to show a reservist calling for a mutiny against the country’s Defense Minister Yoav Gallant.

The behavior documented in the video, which was shared on Telegram by Prime Minister Benjamin Netanyahu’s 32-year-old son Yair, was a “serious violation of IDF orders and IDF values, and constitutes a suspicion of criminal offences,” the Israel Defense Forces said in a…