By Jerry Wagner I was reading some history recently that focused on the Second World War. It contradicted a long-held belief. I’d always heard that the Maginot Line was a colossal failure. The Maginot Line was built by the French from 1929 to the end of the 1930s at a cost of 3.3 billion francs. It was promoted as an impregnable fortification that stretched the entire length of the border between France and Germany. Its sole purpose was to protect the French from the horrors they had experienced in the First World War after the invasion from their neighbors to the East. According to Military History Now , “its 142 bunkers, 352 casemates and 5,000 blockhouses were built using 1.5 million cubic meters of concrete and 150,000 tons of steel. …” The many-miles-thick French “wall” consisted of pillboxes, forts, underground barracks, and the latest in modern and devious defensive technology. It even included an elaborate underground subway system to rush troops to whichever part of the battlefield needed reinforcements. It was the ultimate in defensive preparedness. It was a “marvel.” It was impenetrable! On May 10, 1940, the Germans invaded the Netherlands on their way to Belgium and then France, thereby flanking the wall. On June 10, German panzer divisions were in Paris. One week later, the French had surrendered. The vaunted Maginot Line had failed. At least that’s what conventional history tells us, but was it so? The right tactic for the wrong war Historians have dug deeper into the documents of the time. They’ve discovered information that was not generally available when the world judged that the Maginot Line was a failure. It turns out that the French generals actually had a successful plan. The purpose of the Maginot Line was to deter Germany from attacking across the common border with France as they had in the First World War. Instead, it would force them into attacking through Belgium, creating a narrow choke point where the French could more easily stop them. This aim was accomplished. That’s precisely what the German army did. And the Maginot Line proved to be impenetrable. It never fell until France itself ordered the forts of the Maginot Line to surrender. If not with their wall, where’d the French generals go wrong? When the war started, they had about the same number of tanks as the Germans had in their invading force. How did the Germans overwhelm the French army when they marched right into the trap the French had constructed for them? As is so often the case, the French were fighting the last war. They had learned its lessons but had not adapted to the new mechanical capabilities of modern warfare and changed their tactics accordingly. The Germans launched their offensive with superior air power and their new blitzkrieg methodology of active management of the battlefield. The French mechanized strategy was instead based on placing their tanks in fixed or static defensive positions. The German Luftwaffe and lightning panzer attacks quickly overwhelmed them. Static asset allocation: Just one part of a successful portfolio defense In today’s world of portfolio management, many financial advisers and investors have built themselves a wall. That wall is constructed with static asset allocations based on technology from the 1950s and ‘60s. That wall, like the Maginot Line, can be successful too. It relies solely on the solid concept of diversification, but it forms just one part of a successful portfolio defense. To understand why, let’s look at the enemy we are trying to defend against—market declines that are usually shallow, but at times overwhelming. A few years ago, I made my annual trip to serve on Guggenheim’s Rydex Funds Advisory Board. One of the exhibits they displayed was the table above, which shows the four types of stock market declines since the Second World War. The implications for portfolio construction were immediately apparent. The first two categories encompassed declines of 5% to 20%. They were numerous, shallow, and the recoveries were swift. The last two groupings of 20%-plus to 40%-plus were rarer, very severe, and required a great deal of time just to get back to breakeven. If one draws a line under the first two categories, the demarcation of the four categories into two groups is stark. It’s not surprising that each group requires a different strategy. The top two categories can be successfully dealt with by the static asset-allocation portfolios that have become a dime-a-dozen commodity in the financial world. Because the drawdowns are lower and the recovery time short, a strategically diversified portfolio, like the Maginot Line, can provide an adequate defense. The diversification does its job, mitigates the quick declines, and stays invested for the short recovery. However, to combat the more aggressive attack presented in the last two categories—which can cause severe declines and require a long time to recover—a different defensive approach is needed. During these deep declines, the asset classes of a simple, diversified portfolio all fall in unison, usually by at least as much as the S&P 500. Only a tactical move to bonds, gold, and/or cash has historically proven truly defensive. Why investors need a “tactical” portfolio defense As the French learned to their sorrow in WWII, an active defense rather than a static one is essential. This is where tactical investing becomes a necessary component part of a portfolio. Investors can sit through a short, shallow bout with an attacking “baby bear market,” but few have been able to deal with the relentlessness of a “full-grown bear market,” the type the last two categories detail. Few can stay true to an investment portfolio that is underwater for almost five years! Ask yourself, can you withstand another 50%-plus stock market blowout? Flexible Plan’s dynamic risk-management strategies did a good job of navigating through the “baby bear” pullbacks in 2018 and 2020’s short-lived COVID-related crash. However, the next pullback may be “the big one,” taking investors below the line separating the two pullback groupings in the table above. Putting a defense in place before it’s too late I would advise that if you have not already included dynamic risk management in your portfolios, now is the time to match their passive, strategically allocated core 50%–50% with a tactical core. A tactical core not only supplies the strategic diversification of asset classes, but it also has the capability to swiftly change position. It can become neutral, reactive, or proactive—whatever is demanded of it. Over the years, we have found that, like the French sole reliance on the Maginot Line, a single strategy is not sufficient to deal with modern threats. That’s why we cannot rely, like so many financial advisers and investors do, on a single strategic allocation portfolio for our defense. Instead, we have always advocated a multi-strategy portfolio that combines the best of both a diversified portfolio and tactical, dynamic risk management. A multi-strategy approach can work well for a multitude of suitability profiles. Our QFC Multi-Strategy Core portfolios combine our most popular core strategies. In addition to being able to form the basis for a portfolio of dynamic risk-managed strategies, these turnkey portfolios were designed to be paired with a traditional, passive core portfolio—seeking to provide investors that, until now, have only had a single, Maginot Line–type of protection, with a multi-prong defense for when the bear outflanks them and only an active defense will do. When the line between the two types of market corrections is crossed, and the correction turns into a bear market, do you really want to have just one investment strategy with which to protect yourself?