In recent years, we've seen that aggressive and conservative products, both domestic and global, can move in tandem with one another. In other words, we have experienced market scenarios in which there is very little safety anywhere - even for diversified portfolios.
Twenty-first century asset protection calls for more than just strategic asset allocation. Product allocation - buying the right financial vehicles to help protect your assets from market risk early in retirement - is generally considered a more effective means of protecting assets.
Diversifying your retirement assets among a variety of vehicles - both insurance and investment oriented, depending on what is appropriate for your situation - may offer you the best chance of meeting your retirement income goals throughout your lifespan.