Turtling (Generals)

"Turtling" is a tactical choice that emphasizes building a strongly defended base, rather than focusing on offensive power. In the eventuality of a military stalemate, the "turtle" is much more likely to survive an assault on his base than someone who focuses on rushing. The viability of this tactic depends upon certain circumstances, including the power of the base defensive structures of a particular faction.

While a expert turtle would be able to outlast his opponents, this strategy has several drawbacks. The requisite walls and base defenses take time to set up, and a blitz with tanks could likely penetrate an enemy's defenses if it occured early enough. Also, turtling is fairly expensive, and the late-battle focus on defense can cost a military detachment due to the lack of collected reconnaissance and difficulty replacing depleted resources. Also, the best defenders are not always good at offense, and overly focusing on building an invulnerable base can lead to an atrophied strike capability. In addition, the most powerful base defenses are also the most power-hungry, and if the generators on a base are disabled, a turtle's plans may quickly fall apart. Finally, weapons of mass destruction can punch a hole in a base's defense, no matter fortified they are.

USA
Patriots and EMP Patriots cn destroy a tank in 2 seconds or a few seconds. Alot of Patriots can also destroy Overlord Tanks in a few minutes.

China
Gattling cannons kill infantry and aircrat in 2 seconds.

GLA
Stinger Sites are effective against the Tanks and aircraft looks like so it blast them.