The Government was concerned about this at one stage, especially as Labour were voting with the rebels.
But in the end they won by a fairly comfortable - if reduced - majority of 54.
There was some fairly efficient tactical skirmishing to pick off rebels one by one with concessions, the most important of which is that they will have to now report to Parliament about how the reserves are functioning in the years ahead.
But a victory for the Government tonight and their reforms go forward.
More top news
TV favourite Cilla Black, who has died aged 72, gave viewers a "lorra, lorra laughs" during her long career.
Some rain in the north. Very warm sunshine in the south
Blind Date and Surprise Surprise star Cilla Black,72, has died, according to reports.