Nothing.
The United Kingdom has absolutely nothing to do with the conflict in Gaza. (It would be like asking "What does Australia have to do with the Indo-Pakistani Wars?")
The closest that Britain comes to contributing to the conflict is that over 60 years ago, Gaza and Israel were both part of the British Mandate of Palestine and the decision to give the United Nations the jurisdiction to direct the future of that Mandate came from the United Kingdom. The resulting formation of Israel and the later founding of the Palestinian Authority was as a result of the UN's decision, not from Britain.
That would be the country of Greece, which had long been considered a protectorate of Great Britain.
There is no war between Gaza and Israel.
Yes. After WWI and up until 1948 Britain ruled Transjordan, which contained modern day Gaza, under a mandate given to it by the UN.
Spain, France and the Netherlands.
There is currently no war in progress involving Israel and the inhabitants of Gaza.
Canada willingly contributed to helping Britain in World War 1. When Britain recognized Canada's new strength they gave them more independence.
The war took place all across the Gaza Strip in cities like Gaza, Beit Hanun, and Khan Yunis.
'Gaza' and 'West Bank' are two different, unconnected places. There is no war in either place at the present time, and the phrase "Gaza war of west bank" is really quite meaningless.
The war on Gaza started on December 27, 2008.
Yes. If you are referring to the war of 1967, the Gaza strip was occupied from Egypt by Israel that year.
they got into war
Israel won the Gaza War, but the internation reaction became a serious challenge for the state. Israel defeated Hamas both tactically and strategically, and succeeded in at least minimizing rocket attacks from Gaza.