Time evolution of the merger process for Model 2. Left, middle columns: Projections of the simulated GC positions onto the x - y and x - z planes. The z-axis is aligned with the direction of angular momentum at each epoch. The MW stars are shown in grey, and GSE stars are in blue. The GCs originally associated with the GSE disc are shown in green, and those originating in the GSE halo are shown in red. The Merger GCs formed from GSE gas in the tidal tail during the merger and are shown in orange. Right column: Distributions of GSE stars and GCs in the E - L_z space at the corresponding times.