Similarity to 1973 is that in both cases government was in the hands of experienced people with previous record of success. Maybe, we should appreciate that when we have a win, it is often a nes and not our zechuyos, and we should not rely on a stam repeat without any additional effort. Or, according to the gemora theory that nes eats up zechuyos, then there may be less left for the second case …
A systemic explanation that I hear from some analysts that it is derech olam that achieving sholom with a bad entity through strength leads to inevitable “peace dividend” that politicians milk to get popularity – redirect expenses, fight against or for windmills, and they shape military leadership that is not too aggressive, and, to top that, you get wishful thinking interpreting enemy behavior l’tzad zechus (interesting how halakha leads us here to the right result – no tzad zechus to reshayim).