In the early years just after the state was created, we needed to be strong because our neighbors at that time were implacable. But for at least 20 years, our strength in relation to our neighbors has opened up the prospect of solving our problems with diplomacy. However, our aggressive mode of behavior has largely remain unchanged. Quite the opposite to your assertion, our history of aggressive, militaristic behavior is the reason our relationships with our neighbors are so bad. Considering the instability in Syria and Lebanon, destroying Syrian tanks in the demilitarized zone would have been a reckless act, jeopardizing our security rather than bolstering it.
Suspect Bangkok bomber arrested, found with possible bomb-making materials (Reuters)
from the article: Three Syrian tanks enter demilitarized zone in Golan Heights