Reconstituted after the March battles, 62nd Division was sent in July to reinforce the French armies fighting on the Marne. The last German attacks were halted and the French immediately passed to the offensive, with the British divisions attacking down the Adre Valley in the Battle of Tardenois. They had made a long approach march, their relief of the French having turned into an advance. The attack began at 08.00 on 20 July behind a barrage. Progress along the wooded valley was slow: on 22 July two companies of 1/5th Devons were sent to help &lt;a href="186th%20%282/2nd%20West%20Riding%29%20Brigade"&gt;186th (2/2nd West Riding) Brigade&lt;/a&gt; attacking troublesome German positions in the Bois du Petit Champ. The fighting was at close range in the thick undergrowth and at one point a company of the &lt;a href="Huddersfield%20Rifles"&gt;2/5th Duke of Wellington's Regiment&lt;/a&gt; was surrounded and the survivors had to cut their way out, but by nightfall the area had been cleared in what the West Riding historian described as a 'gallant little enterprise'. On 28 July 1/5th Devons supported &lt;a href="Leeds%20Rifles"&gt;2/8th West Yorkshires&lt;/a&gt; in 'a particularly brilliant assault on the Montagne de Bligny'. It started at 04.00 in dawn half-light and mist. The Devons reached their objective at the foot of the steep slope by 07.00 before attracting enemy fire; the West Yorkshires then rushed the hill and captured most of tactically important position, despite serious casualties (the 1/5th Devons suffered 388 killed and wounded in this action). After the battle the West Riding Division's commander wrote to the Devonshire Territorial Association thanking them for the assistance the battalion had given his Yorkshiremen.