United Nations air support began to increase, slowing the advance further.
The time taken to use them, slowed the advance of one's own troops.
"A few may remain, just to slow your advance, but the rest will go, never to return."
That had to slow the advance, but it was safer.
These will slow its advance as the fresh stuff piles up behind them.
There were already more than a dozen, and the climb didn't seem to slow their advance at all.
However heavy rains soon slowed their advance through the country.
However, the combined forces could not stop or even slow the advance of the Japanese troops, due to their much greater numbers.
When we see them, we can at least slow their advance.
She held up her hands to slow his advance.