1. Israeli weapons went to the SA apartheid government not to Mandela. 2. If Mandela was trained in methods of terror honed by the Haganah he never had a chance to use them before he was sentenced to a life in prison. In fact, he is quoted as saying he was happy he was stopped before he engaged himself in the murder of innocent civilians.
Rocket alarm sirens sound in southern Israel (Haaretz)
from the article: Mandela received weapons training from Mossad agents in Ethiopia