Well dropping nuke on your own country is a bad idea for many reasons. Crop irradiation, water commination, large unintended civilian casualties. Do all those things, you will turn more of your own people against you. Plus no one wants to support or ally a country that nukes its own people.
Take Rhodesia for example. A country fighting communist rebels during the cold war, however they lost foreign support and as result the rebels kicked out all the remaining white people and ran the country into debt.
Rolling tanks and armored vehicles around is bad idea for many reasons. The rebels can run off into hiding and avoid most confrontations with a mechanized force. In Afghanistan all the Mujahedeen had to do was lay anti tank minds and engage and observe. Transports like BMPs became metal coffins for their passengers and their crews, tanks were destroyed. Even in Chechnya the best soviet tank was of no help.

Roll a something big, and it becames a big game hunt.
Look at the Balkans, the Serbs tried to attack a town with Tanks and ended up losing them all in that attack

