Vgg
There are a lot of things that the acronym IDF can represent. Some options are Israel Defense Force, International Dairy Federation, and Idiopathic Pulmonary Fibrosis.
Israël defence force
Iso means "the same".
Independent Service Organisation(ISO)
Iso- means same.psp
'ISO' in a personal / dating ad stands for 'In Search Of.'
IDF Sword Battalion was created in 1948.
ISO means "In search of" - for example, someone might post ISO gently used stroller.
"In Search Of"
similar
PE would be Polyethylene, check ISO for TC.