 Meanwhile, by May 1953 the PVA 1st, 46th, 63rd, 64th and 65th Armies of the 19th Army Group were operating against the US I Corps under the overall command of Huang Yongsheng.Wilton deployed the stronger Australian battalions forward, with 2 RAR occupying the left forward position on The Hook, while 3 RAR was deployed on the right, overlooking the Samichon River.1 DLI was on the opposite side of the Samichon, while 1 RF was held in reserve as a brigade counter-penetration force.