The land force of the F-FDTL consists of two light infantry battalions, each with an authorised strength of 600 personnel. The force was predominantly trained by the Australian and Portuguese militaries. Each battalion has three rifle companies, a support company and a headquarters company. Although the army is small, the guerrilla tactics employed by FALINTIL before the departure in 1999 of the Indonesian military were effective against overwhelming numbers and it has the potential to form a credible deterrent against invasion.