Yet even as they tried to stem the violence, Americans forces continued to come under sustained attack.

They have come under sustained attack from much of the Greek national press.

Of late, however, the bar association has come under a sustained attack from conservative Republicans.

Most carried on when they were too weak for any sustained attack.

However, their ability to launch a sustained attack seemed to be gone.

Living standards are meanwhile under their most sustained attack since the 1920s.

The way lay open for a sustained attack on environmentalism.

By 1931, his work came under sustained attack as anti-communist.

In case of war, the defenders were expected to withstand a sustained attack for 12 hours.

Is that really a sustained attack on their bank account?