Enemy heavily shell our area. We respond with much heavier stuff & more of it. He blows a mine back of Birken Crater in his own line.
Much aerial activity two enemy planes sneak over our lines & set fire to one of our balloons. Occupants escape in parachutes. One of our fast planes attack 6 of enemy & luckily escapes.
14 enemy planes hover over their lines & ours occasionally venture there to.
The mud is deep & awful.