Who else believes Colombia should invade Ecuador?

Your opinion is unfounded. If it was that easy it would have already happened. Try researching before you get an opinion, that way your opinion won't sound dumb. Colombia relies on Its neighbors for a lot of international trade, which would be cut off from all sides if colombia attacked ecuador. On top of that Colombia is practically a loner in South America. Most countries down there are allies with ecuador and Venezuela, not Colombia, including the Chinese, who have the largest army in the world. There was a time when Peru thought like you and their army was wiped out in a short time because Ecuador keeps most of its fighter jets hidden, so peru underestimated ecuador's strength. That and Colombia has been in the middle of a civil war for more than 50 years. Its dumb to attack your neighbors when you are busy with enemies inside your country because you will be getting attacked from within and out and the people in your country will pass on intelligence to your enemies. That is why Colombia can't launch an offensive in south america against any country there.