along the Imjin prevented a planned attack by the US 1st and 3rd Battalions, 65th Infantry, to relieve the Glosters. When two further attempts by a tank troop to link up with the Glosters failed, Brodie left the decision to Carne whether to attempt a break-out or surrender. No further attempts to relieve the Glosters were undertaken because, at 08:00 on 25 April, US I Corps issued the order to execute Plan Golden A, which called for a withdrawal of all forces to a new defensive position further south. In accordance with orders issued by I Corps, the Fusiliers, Rifles and Belgians, supported by the tanks of the 8th Hussars and the Royal Engineers of 55 Squadron, withdrew to the safety of the next UN position. The Belgians occupied blocking positions west and southwest of the 29th Brigade's command post in order to allow the other units of the brigade to fall back through the battalion's positions. The withdrawal under intense enemy pressure was made even more difficult by the fact that PVA forces dominated parts of the high ground along the line of retreat; they were able not only to observe any movements by the 29th Brigade, but also to inflict heavy casualties on the retreating units. Among those killed was the commanding officer of the Fusiliers, Lieutenant-Colonel Foster, who died when his jeep was hit by PVA mortar fire. In the words of Major Henry Huth of the 8th Hussars, the retreat was "one long bloody ambush". When B Company of the Ulsters, which had acted as rearguard during the retreat, reached the safety of the next UN line, all elements of the 29th Brigade except for the Glosters had completed the withdrawal. The Glosters on Hill 235 The Glosters' situation on Hill 235 made it impossible for them to join the rest of the 29th Brigade after it had received the order to retreat. Even before the failed attempts to relieve the battalion on 24 April, B and C Companies had already suffered such heavy casualties that they were merged to form one company. Attempts to supply the battalion by air drop were unsuccessful. Despite their difficult situation, the Glosters held their positions on Hill 235 throughout 24 April and the night of 24/25 April. In the morning of 25 April, 45 Field Regiment could no longer provide artillery support. Since Brodie had left the final decision