During which operation did 1st and 2nd battalions deploy on the USS America to Haiti?

The deployment of the 1st and 2nd battalions of the Ranger Regiment on the USS America to Haiti occurred during Operation Uphold Democracy. This operation was initiated in 1994 in response to the overthrow of Haiti's democratically elected president, Jean-Bertrand Aristide. The operation aimed to restore Aristide to power and stabilize the country amidst a significant humanitarian crisis.

The involvement of the Ranger battalions aboard the USS America underscores the U.S. military's rapid-response capabilities and its commitment to supporting democracy and stability in the region. During this operation, the presence of the Ranger units on a Navy amphibious assault ship allowed for an effective and flexible approach to the deployment, enabling them to quickly engage if necessary.

In contrast, the other operations listed focus on different conflicts and regions, such as the invasion of Panama, the initial phases of the Gulf War, and the Grenadian invasion, which are unrelated to the situation in Haiti during the time of Operation Uphold Democracy.