Could the Allies seize the Bosphorus without tanks or modern aircraft?

How could the Allies seize the Bosphorus before tanks and effective aircraft existed?

It would be slower and difficult, but later weapons were not prerequisites when neither side possessed them and earlier armies had overcome the same geography with far less technology.

The question assumes that tanks and effective combat aircraft were necessary to overcome the straits' defenses. Contemporary forces had to solve the problem with the weapons, transport, and engineering available to both sides. Much earlier conquests achieved with swords, shields, and cavalry show that the absence of twentieth-century assault systems made an operation slower and harder rather than inconceivable. The useful comparison is therefore between the opposing capabilities of 1915, not between the Allies and a later mechanized army.