Hong Kong's lease and infrastructure dependence

Why could Britain not keep Hong Kong as a satellite state, and why did the long lease eventually force a settlement?

Retaining Hong Kong would have required a confrontation with China, while the unleased core was too small and too dependent on outside water and territory to remain viable on its own.

Britain could not plausibly keep Hong Kong as a satellite state once China insisted on recovery unless it was willing to fight. The legal position was uneven because parts of the territory were held on different terms, but the unleased area was too small to function independently. Hong Kong also depended on land and water beyond that core, making geography as important as treaty wording. The original negotiators accepted a long but finite lease because they expected Britain to remain strong enough to renew it later. By the 1990s that assumption no longer held, and China had both the legal claim and practical leverage. A distant treaty deadline can become decisive when power and infrastructure dependencies change.