beachhead, foothold, gateway, hub, counterweight, springboard, launching pad, toehold, stepping stone, bulwark, fulcrum, lebensraum, launchpad, outpost, hegemony, fortress, maginot line, inroad, cordon sanitaire, teutonic order, gun emplacement, upper silesia, stronghold, ratlines, hideyoshi toyotomi, byzantine empire, redoubt, entrenchments, gelibolu, encirclement, balkan peninsula, hinterland, chokepoint, stalingrad, conduit, remagen, tientsin, manchuria, linchpin, triple entente, hegemon, focal point, frisia, dogger bank, strategic, suzerainty, fortifications, citadel, vietminh, fortresses, hanseatic league, princedom, powerhouse, ploce, counterbalance, protectorate, lynchpin, scheldt, vanguard, coaling station, entrepot, catalyst, pilsudski, airfields, ruhr valley, manchukuo, plassey, elbe river, occident, forerunner, amu darya, lifeline, buffer, garrison, remilitarization, demilitarized zone, bastion, ussuri, dardanelles, conquest, brenner pass, frontier, adrianople, supremacy, inchon, seato, alexandretta, lingayen gulf, kattegat, syr darya, hindenburg line, impetus, martello tower, eastwards, dockland, expansionism, counterforce, dominancy, euphrates, cento, kurzeme, alliance, bridgeheads, footholds, front, contingent, salient, perimeter, westwards, depot, harbour, offensive, outposts, railroad, railroads

airhead, beachhead

combat zone, post, station