 The combined PAVN/VC forces were able to achieve the element of surprise, but despite some early victories, they could only sustain their offensive for a few days, or in the case of the Battle of Huế several weeks, before being ejected with heavy losses.In I Corps the PAVN had mixed successes against allied military forces.On 7 February 1968, PAVN infantry armed with satchel charges, tear gas, and flamethrowers, and reinforced with Soviet-made PT-76 amphibious tanks, successfully seized the Lang Vei Special Forces Camp.