Translation of "Guarding" in French

Cuban soldiers were guarding the streets.

Les soldats cubains gardaient les rues.

The soldiers were guarding the bridge.

Les soldats gardaient le pont.

How many men are guarding Tom?

Combien d'hommes gardent Tom ?

- The soldiers were guarding the bridge.
- The soldiers guarded the bridge.

Les soldats gardaient le pont.

His role was to support Marshal Oudinot in  guarding the northern flank of the French salient.  

Son rôle était de soutenir le maréchal Oudinot dans la garde du flanc nord du saillant français.

And guarding the road to Paris. But by now he  was showing signs of exhaustion and disillusion.

et gardant la route de Paris. Mais à présent, il montrait des signes d'épuisement et de désillusion.