Why is the IDF ordering viagra?

The IDF has asked for bids for 1,200 Viagra pills. No, it's probably not for what you think.

Like other ministries, the Defense Ministry periodically publishes
tenders in the daily press through the Government Advertising Bureau.
One such tender recently published seeks 1,200 tablets of 100 mg.
sildenafil citrate, the active ingredient in Viagra, to be used by
Israel Defense Forces