National Union had come under scrutiny for its sympathy towards right-wing "price-tag" militants, who engaged in vandalist activities targeting both the state of Israel and Palestinians, including siding with such militants in clashes with Israeli authorities. When a group of "hilltop youth" militants attacked an Israeli army base in late 2011, MK Uri Ariel protested Israeli officials who called the group "terrorists", and condemned calls for the use of lethal force to repel such attacks in the future. In January 2012, Ariel admitted to giving IDF troop movement information to such militants in order to facilitate disruption of army activities.