From the American Revolution until 1913 it was common practice for USMC detachments (both ship-based, and shore-based) to be combined to form provisional units. Most often these formations took the form of provisional battalions, but on occasion became provisional regiments, provisional brigades, or rarely (especially when combined with Navy personnel) naval infantry brigades. These organizations were intentionally temporary as the USMC did not usually maintain standing forces larger than company size, but rather created "task units" on an "as needed" basis.
From the American Revolution until 1913, it was common practice for USMC detachments (both ship-based and shore-based) to be combined to form provisional units. Most often these formations took the form of provisional battalions, but on occasion became provisional regiments provisional b,rigades, or rarely (especially when combined with Navy personnel) naval infantry brigades. These organizations were intentionally temporary as the USMC did not usually maintain standing forces larger than company size, but rather created "task units" on an "as needed" basis.