In part. If the best that our wet fag, I mean rag, of an excuse for a leader can muster is two facelifted Lynx and 4 Typhoons, then we may as well give up. 
We shouldn't be involved at all.
Iran is not our concern, same goes for Ukraine. "That wet rag" of which you speak, is a globalist and still thinks–wrongly—that the UK has place on the world stage. We don't and we should just accept that. No way should our armed forces be used to fight foreign wars that the general public do not support.
Former US Ambassador Chas Freeman says diplomacy, not war, is the way to conduct foreign policy. 
https://www.youtube.com/watch?v=kS_9Jp0Htg4
We ARE part of the democratic World that TOGETHER must stand up to the regimes of Iran and Russia to ensure their evil, that affects their own people, let alone us, does not spread and bring about a situation that we certainly do not want. We MUST stand united together to rid the human race of the dictators. But I suppose you wont agree with that, and probably believe that we should do what our leaders did in 1938, and let an aggressor get away with invading another country, just like Putin has, to achieve their aspirational empire and eliminate those that get in the way!

In some ways I feel that 2026 could be the new 1938....just waiting for the world to go tits up, like it did in 1939.
Starmer is a nancy boy wet wipe of a PM, just as Chamberlain was in 1938. 
That may be very true, but in fairness I must point out that Chamberlain HAD to not commit the British armed forces to a confrontation with the Nazis as, after WWI, those forces had been dramatically scaled back. Britain was simply not ready for war, and had to buy time, which Chamberlin successfully did. He knew his "Peace in our time" was not real, and a massive uplift in military investment had to urgently take place. When he returned to Downing Street it is recorded he clearly stated this, knowing that the Munich Agreement was not worth the paper it was written on. From at least 1937 a start had been made on rearmament due to what Hitler was doing, and then from 1938 the great rearmament of the RAF, with the increased production of the Spitfire and the training of new pilots started in earnest, as one example, of what had to be done. He DID know that a big war was unavoidable, but could not be faced in 1938 without the high risk of defeat. Churchill of course played on this, and took the political lead, as he had been warning of the great dangers of Nazi Germany since 1933, when Chamberlain was seen as a weak Prime Minister who was not seeing the dangers. Actually he did.
Now Sir Keir has faced a similar issue, with successive previous government, including the Conservatives, severely cutting the Defence Budget and placing the UK in a "unready for war" state. He now must somehow "make time" with the diminished military and he has already started the process to rebuild, after the previous Conservative Government did make a good decision; to build two full aircraft carriers. They just need a full back up of supporting destroyers , and cruisers, let alone many more F35's. The trouble is, in the 21st century, developing and rebuilding the military takes
significant time, which the issue of HMS Dragon highlights, in its own way, with time needed to build up stocks of munitions, and having no real back up to this specialist vessel. The very issue that many European countries are now facing. The Ukraine War has also dramatically shown, to all militaries, that the nature of warfare has changed and has led to a major review of how to conduct a modern fight for survival.
We shall now watch with interest what decisions are now made, and what actions transpire.