The only changes made were augmentations to their anti-aircraft batteries.
Just after midnight local time, anti-aircraft batteries opened up again.
Throughout the war, both ships saw their anti-aircraft battery changed constantly.
Her anti-aircraft batteries opened up immediately but failed to hit the intruder.
The 75 mm anti-aircraft battery was of the M1922 type.
The unit had orders to supply an anti-aircraft battery in the area.
A 75 mm anti-aircraft battery was located on the island in October 1914.
Eight minutes later, she opened fire with her 3-inch anti-aircraft battery.
Then I ran through the hot snow towards the anti-aircraft battery.
The Ministry said that the area was the only place to put an anti-aircraft battery.