The land you buy in Italia is yours, forever (unless you decide to sell it). It cannot be conquered, it cannot be taken. It is a one-of-a-kind unique digital asset on the Ethereum blockchain - owned by you.
Land you own produces new troops and resources every day. Build on and improve your land. Increase resource production. Enhance its value.
European land outside of Italia can only be conquered. Attack new lands in Europe each day. Defend conquered ones. Tactically re-enforce your provinces or vital resource producing areas.