The War to End All Wars 3rd Ed.
Complete Game Rules
Surrender
A nation is considered conquered when all of its supply centers have been captured or destroyed. A conquered nation may no longer collect resources or build units, though its existing units may continue to fight on. A conquered nation may also choose to declare a "government in exile" and name a host nation for its armed forces. The host nation must be an ally. The host then assumes command of the "government in exile's" forces. The exiled nation's units may function as units of the host's army (i.e.,movement and combat) and will remain under the host's control until the conquered nation is liberated. Liberation occurs once the conquered nation's capital has been allied controlled for two full turns. While a government is in exile all of its remaining territories not already captured by the enemy are assumed to be territories originally held by the host nation.
