 Complete the following phrase:  In September 1991, Nicollier arrived in Vukovar with the last volunteers. Nicollier fought across the Vukovar battlefields and was wounded twice in the three months he was there. On 9 November 1991 he was wounded in the leg by a fragmentation grenade, and was transported to the Vukovar hospital where he was treated for his injuries. Nicollier stayed in the Vukovar hospital until the 