 In January 2014, General Amos signaled a "phased approach" to creating the ACV in which he lessened the importance of speed on water as an immediate requirement for the vehicle.Speed on water had been identified as a crucial need to quickly reach the beach so Marines could fight inland.Given budgetary pressures, Phase 1 of the program would consist of creating a vehicle they can afford quickly to replace the AAV, which are around 40 years old.